To see the other types of publications on this topic, follow the link: Benzo.

Dissertations / Theses on the topic 'Benzo'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Benzo.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Richthofen, Andreas Albert Von. "Benzo[5]radialenos como precursores de fluorenos e benzo[b]fluorenos." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-18092015-124232/.

Full text
Abstract:
Neste trabalho demonstramos a preparação de fluorenos e benzo[b]fluorenos por uma nova rota sintética, baseada na reação de Diels-Alder de derivados benzo[5]radialênicos. Para a preparação destes últimos investigamos diversas estratégias, partindo de p-benzoquinona e três dienos: 1,1-dimetoxiciclopentadieno, 6,6-dimetilfulveno e 6-acetoxifulveno. A partir de cada fulveno obtivemos um benzo[5]radialeno diferente, sendo que o derivado dimetilado se mostrou inerte como dieno em cicloadições. O benzo[5]radialeno derivado do 6-acetoxifulveno, reagiu com diversos dienófilos tais como p-benzoquinona,
APA, Harvard, Vancouver, ISO, and other styles
2

Schmid, Dirk [Verfasser]. "Benzo-1,3,2-diazaphospholid und Benzo-1,3,2-diazaphospholenium – ein ungleiches Paar? Und sind unsymmetrisch N-alkylierte Benzo-1,3,2-diazaphospholeniumsalze ionische Flüssigkeiten? / Dirk Schmid." München : Verlag Dr. Hut, 2019. http://d-nb.info/1202169074/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Firth, J. W. "Phenoxy-2H-benzo[b]pyrans." Thesis, University of Huddersfield, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370501.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bode, Matthias. "Benzo[c][2,7]naphthyridin-5-yl-amine und Benzo[h][1,6]naphthyridin-5-yl-amine." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979241499.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Christophe, Stéphanie. "Synthèse arynique de biphénylènes, benzo cyclobuta biphénylènes et benzo cyclobuta carbazoles : obtention de nouveaux antitumoraux." Nancy 1, 1998. http://www.theses.fr/1998NAN10112.

Full text
Abstract:
Dans une première partie, des synthèses de biphénylènes et de benzo cyclobuta biphénylènes ont été réalisées par cyclisations aryniques intermoléculaires d'énolates de cétones sur des dérivés halogènes aromatiques au moyen des bases complexes NaNH2/tBuONa. Des études systématiques ont permis de trouver les conditions optimales d'obtention des produits recherches. Ainsi, une gamme de dérivés pentacycliques bis hydroxylés fonctionnalisés ou fonctionnalisables a pu être synthétisée à partir de matières premières peu onéreuses avec un principe réactionnel assez simple. Dans une deuxième partie, la
APA, Harvard, Vancouver, ISO, and other styles
6

Kerry, Mark Anthony. "The design and synthesis of novel topoisomerase I poisons." Thesis, University of Sunderland, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245780.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Do, Quyên. "Conception, synthèse et évaluation biologique de nouveaux antitumoraux en séries benzo[b]acridone et benzo[b]acronycine." Paris 5, 2006. http://www.theses.fr/2006PA05P603.

Full text
Abstract:
L’acronycine est un alcaloïde antitumoral à large spectre dont l’évaluation clinique a été limitée en raison de sa faible puissance et de son insolubilité dans les solvants biocompatibles. Les diesters de série 1,2-dihydro-1,2-dihydroxybenzo[b]acronycine se sont révélés particulièrement intéressants, notamment le diacétate S-23906-1 qui fait l’objet d’études cliniques. De nombreux dérivés de série benzo[b]acronycine, porteurs de groupements très partants (type carbamate) et des dérivés plus stables (esters cinnamiques) ont été synthétisés. Leur cytotoxicité a été évaluée sur cellules L-1210 et
APA, Harvard, Vancouver, ISO, and other styles
8

Clark, E. R. "Synthesis and chemistry of benzo-1,2,4-thiadiazines." Thesis, University of Cambridge, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597719.

Full text
Abstract:
Forty-five 3-aryl benzo-1,2,4-thiadiazine derivatives have been prepared and twenty-two derivatives characterised by X-ray diffraction. Their solid-state molecular structures reveal low energy pathways for deformation through (i) rotation of the aryl group; (ii) folding of the heterocycle about the transannular S<sup>….</sup>N vector. This largely qualitative assessment has been supported by <i>ab initio</i> DFT (B3LYP/6-31G) calculations. Improvements to the published syntheses the related 3-aryl benzo-1,2,4-thiadiazine 1-chlorides have increased yields and selectivity. A new route to these s
APA, Harvard, Vancouver, ISO, and other styles
9

Pestana, José Alexandre Xavier. "Some benzo- and naphtopyrans by novel cyclisations." Doctoral thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/17607.

Full text
Abstract:
Bibliography: pages 150-156.<br>It has recently been shown that the naphthalene dimethyl ethers E-2-Hydroxymethyl-1,4-dimethoxy-3-pent-1-enylnaphthalene and E-2-Hydroxyethyl-1, 4-dimethoxy-3-prop-1-enylnaphthalene cyclise to afford naphtho[2,3-c]pyrans when treated with two molar equivalents of cerium(IV) ammonium nitrate. It has also been shown that these naphthalenes cyclise readily and in high yield to give naphthopyrans when treated with potassium-t-butoxide in dimethylformamide under anaerobic conditions. In order to determine which structural features present in these compounds are requ
APA, Harvard, Vancouver, ISO, and other styles
10

Carvalho, Carla Marisa Brito de. "Síntese e reatividade de benzo-e pirroloporfirinas." Doctoral thesis, Universidade de Aveiro, 2012. http://hdl.handle.net/10773/8676.

Full text
Abstract:
Doutoramento em Química<br>O trabalho descrito nesta dissertação envolve estudos de funcionalização de uma pirrolo[3,4-b]porfirina através de reações do tipo cicloadição [4+2]. A metodologia de cicloadição usada permitiu sintetizar duas grandes famílias de compostos: benzoporfirinas e 1,3-dioxopirroloporfirinas. Este documento é composto por três partes distintas. Na primeira parte são tecidas considerações gerais sobre síntese, propriedades e aplicações de porfirinas. Na segunda parte é apresentado o trabalho desenvolvido no âmbito de síntese e reatividade de benzoporfirinas. Numa pri
APA, Harvard, Vancouver, ISO, and other styles
11

Asche, Christian. "Strukturoptimierung von Benzo(b)carbazol-Derivaten als Zytostatika." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966453743.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Baekelmans, Didier. "Synthèse de benzo-indolizines par cycloaddition 1,3 dipolaire." Doctoral thesis, Universite Libre de Bruxelles, 1998. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212087.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Lumsdon, Simon Nicholas. "Polycyclic heteroaromatic systems based on benzo[b]thiophenes." Thesis, University of Hull, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296282.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Lowe, Nigel D. "Transition metal complexes of crown ether benzo-dithiolenes." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306406.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Bilash, О. М., О. М. Galaichenko, O. A. Sushko, and M. M. Rozhitskii. "New nanophotonic detection method of benzo[a]pyrene." Thesis, КНУ імені Тараса Шевченка, 2011. http://openarchive.nure.ua/handle/document/8853.

Full text
Abstract:
Benzo[a]pyrene is the representative of polycyclic aromatic hydrocarbons family, the substance of the first hazard class. In present work for the development of novel nanophotonic assay method as a PAH representative benzo[a]pyrene was choose.
APA, Harvard, Vancouver, ISO, and other styles
16

Grupe, Stefanie. "Mikrosomale Biotransformation von Benzo[ghi]perylen, einem mutagenen polyaromatischen Kohlenwasserstoff ohne das Strukturelement der Bay-Region des kanzerogenen Benzo[a]pyrens." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975967770.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Maesano, Tallone Élise. "Photooxydation d'hydrocarbures polyaromatiques a groupement methylene actif : fluorene, acenaphtene, cyclopenta(d,e,f)phenanthrene, benzo(a) fluorene et benzo(b) fluorene." Toulon, 1992. http://www.theses.fr/1992TOUL0006.

Full text
Abstract:
Le sujet de cette these concerne l'etude de la photooxydation de cinq hydrocarbures polyaromatiques (hpa) a groupement methylene actif. Il s'agit du fluorene, de l'acenaphtene, du cyclopenta(d,e,f) phenanthrene et des benzo(a) et (b) fluorenes. Ces composes ont ete choisis parce qu'ils possedent une structure originale, et qu'ils sont egalement reconnus comme des polluants notoires dans l'environnement. L'interet de cette etude est double: un aspect purement photochimique et un aspect plus applique a la chimie de l'environnement. Dans l'etude photochimique, la reactivite de chaque hpa, a ete d
APA, Harvard, Vancouver, ISO, and other styles
18

Tian, Wen. "Etude phytochimique de Zanthoxylum unifoliolatum T. G. Hartley, ined. : synthèse et activité biologique de dérivés aminés et d'aza-analogues de la benzo[b]acronycine." Paris 5, 2004. http://www.theses.fr/2004PA05P617.

Full text
Abstract:
Les benzo[c]phénanthridines sont des alcaloïdes largement présents dans les plantes de la famille des Rutaceae(genre Zanthoxylum et Toddalia). Ces composés présentent des activités antileucémiques, antiinflammatoires et antimicrobiennes. La première partie de ce travail porte sur l’étude phytochimique d’une nouvelle espèce, Zanthoxylum unifoliolatum T. G. Hartley, ined. , Rutaceae endémique de la Nouvelle Calédonie. A partir des écorces de tronc une coumarine et douze alcaloïdes ont été isolés, deux furoquinoléines et dix benzo[c]phénanthridines dont, deux nouveaux composés dérivés de l’avicin
APA, Harvard, Vancouver, ISO, and other styles
19

Kirsch, Gilbert. "Synthèse et réactivité de composé bihétérocycliques séléniés--sulfures à squelette benzo (b) sélénophénique comparaison avec leurs analogues à squelette benzo (b) furannique /." Metz : Université de Metz, 2008. ftp://ftp.scd.univ-metz.fr/pub/Theses/1973/Gilbert.Kirsch.SMZ7301.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Perrin, Louis. "Synthèse et réactivité de composés bihétérocycliques oxygénés-sulfurés à squelette benzo (b) furannique comparaison avec leurs analogues à squelette benzo (b) sélénophénique /." Metz : Université de Metz, 2008. ftp://ftp.scd.univ-metz.fr/pub/Theses/1973/Perrin.Louis.SMZ7308.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Schwebel, Dirk. "Synthese und Photochemie von 2H-1-Benzo(thio)pyrancarbonitrilen." [S.l. : s.n.], 2000. http://www.sub.uni-hamburg.de/disse/225/diss.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

McClean, G. O. "Fluorescent sensors based on benzo-15-crown-5 ethers." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403172.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Mullane, Mary Valerie. "A versatile total synthesis of benzo[c]phenanthridine alkaloids." Thesis, University of East Anglia, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389200.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Ross, Helen L. "The metabolism of benzo(a)pyrene in human cells." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Mousley, David P. "The application of bis(benzo)-crown ethers as multireceptors." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295075.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Hargreaves, Samantha Louise. "Synthesis of Benzo[c]phenanthridines as potential antimalarial agents." Thesis, University of Strathclyde, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275157.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Weyand, Eric Henry. "The metabolic fate of benzo [a] pyrene in vivo." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/77786.

Full text
Abstract:
[³H]-B[a]P absorption, distribution, metabolism, excretion and macromolecular binding in male Sprague-Dawley rats were investigated following administration by intratracheal instillation through a cannula. [³H]- radioactivity in various organs was determined at timed intervals between 5 and 360 min. Elimination of radioactivity from lungs was biphasic with half-lives of 5 and 116 min. Radioactivity in liver increased rapidly, reaching a maximum of 21% of the dose within 10 min after installation and decreasing thereafter, until less than 5% of the dose was detected at 360 min. Radioactivity in
APA, Harvard, Vancouver, ISO, and other styles
28

Kadleciková, Katarina. "Synthèse des nouveaux benzo et hétéroanalogues d'alcaloi͏̈des indolozidiniques hydroxylés." Le Havre, 2003. http://www.theses.fr/2003LEHA0002.

Full text
Abstract:
Dans ce manuscrit, nous avons développé la préparation d'une nouvelle famille d'analogues aromatiques des alcaloi͏̈des naturels de type hexahydroindolizine. L'acide (S)-N-(phénylméthyl)-5-oxopyrrolidine-2-carboxylique a été utilisé comme produit de départ dans la synthèse totale des benzoanalogues de la tylophorine et des analogues phénylés de la swainsonine et de la lentiginosine. La synthèse des benzoanalogues de la tylophorine a été effectuée en 4 étapes avec des rendements globaux de 30. 9% et 27%. La synthèse des analogues phénylés de la swainsonine et de la lentiginosine ont été effectué
APA, Harvard, Vancouver, ISO, and other styles
29

Mantovani, Françoise Cagniant D. "Réactivité et propriétés spectrographiques en série benzo (b) sélénophénique." Metz : Université de Metz, 2008. ftp://ftp.scd.univ-metz.fr/pub/Theses/1972/Mantovani.Francoise.SMZ7203.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Ryšavý, Jan. "Kinetika fotodegradace benzo[a]pyrenu a identifikace jeho produktů." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2010. http://www.nusl.cz/ntk/nusl-216656.

Full text
Abstract:
This diploma thesis is focused on the study of conditions of benzo[a]pyrene, one of the major contaminant of foods, photodegradation under different conditions (solvents with different polarity, light sources, presence of antioxidants). In another part of the thesis, the degradation process of benzo[a]pyrene at various concentrations was studied, in order to characterise the kinetic aspects of photoinduced degradation. The attempt to identify the products of benzo[a]pyrene photodegradation was performed involving methods of gas chromatography and high performance liquid chromatography coupled
APA, Harvard, Vancouver, ISO, and other styles
31

Chamelete, André [UNESP]. "Avaliação da expressão dos genes cFOS, IL-1b, CYP1a1 e CYP1b1 em Danio rerio expostos a Benzo[a]pireno e tratados com ligantes do receptor P2X7." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/134243.

Full text
Abstract:
Submitted by André Chamelete null (andre_ecco@hotmail.com) on 2016-02-12T14:02:00Z No. of bitstreams: 1 Dissertação de Mestrado - FINAL.pdf: 663322 bytes, checksum: 5ca648d67a3a798d08f9c68653ac3ca2 (MD5)<br>Approved for entry into archive by Sandra Manzano de Almeida (smanzano@marilia.unesp.br) on 2016-02-12T17:20:57Z (GMT) No. of bitstreams: 1 chamelete_a_me_sjrp.pdf: 663322 bytes, checksum: 5ca648d67a3a798d08f9c68653ac3ca2 (MD5)<br>Made available in DSpace on 2016-02-12T17:20:57Z (GMT). No. of bitstreams: 1 chamelete_a_me_sjrp.pdf: 663322 bytes, checksum: 5ca648d67a3a798d08f9c68653ac3ca2
APA, Harvard, Vancouver, ISO, and other styles
32

Yang, Yang. "The in vivo metabolism of benzo[a]pyrene studied by chromatography in combination with mass spectrometry /." Stockholm, 1997. http://diss.kib.ki.se/1997/91-628-2640-9/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Hristeva, Stanimira [Verfasser]. "Development of new asymmetric organocatalytic domino reactions for the synthesis of (benzo-fused) five- and benzo-fused six-membered cyclic compounds / Stanimira Hristeva." München : Verlag Dr. Hut, 2016. http://d-nb.info/1094117803/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Sittisombut, Chavalit. "Synthèse et activité biologique d'analogues structuraux de l'acronycine en séries benzo[a]pyrano[3,2-h]xanthones et benzo[a]pyrano[3,2-h]acridone." Paris 5, 2003. http://www.theses.fr/2003PA05P612.

Full text
Abstract:
Si l'acronycine alcaloïde isolé d'Acronychia baueri Schott (Rutaceae) possède un large spectre d'activité sur des tumeurs expérimentales animales mais une faible puissance. La série benzo[b]acronycine a fourni des composés plus puissants et présentant une meilleure biodisponibilité. L'un d'entre eux est actuellement en fin de développement préclinique sous la référence S 23906-1. La première partie de la thèse porte sur la synthèse de composés de série benzo[a]pyranoxanthone homologues de la benzo[b]acronycine et de la psorospermine. Leur activité cytotoxique, in vitro, est de même ordre que c
APA, Harvard, Vancouver, ISO, and other styles
35

Gaslonde, Thomas. "Structure, synthèse et activité biologique d'analogues structuraux, de dimères et de métabolites potentiels en séries acronycine, benzo[a]acronycine et benzo[b]acronycine." Paris 5, 2007. http://www.theses.fr/2007PA05P621.

Full text
Abstract:
Le S23906-1, est un antitumoral dérivé de l’acronycine. La configuration absolue de chacun des deux énantiomères du S23906-1 est déterminée. L’énantiomère (1S,2S) a une activité antitumorale supérieure à celle du racémique et de l’énantiomère (1R,2R). En vue de l’obtention de composés aussi actifs que le S23906-1 mais possédant une solubilité accrue dans les solvants biocompatibles, des produits substitués en position 10 par une amine ou un alcool ont été préparés. Ils ont été synthétisés en utilisant la 10-bromobenzo[a]acronycine et de la 10-bromobenzo[b]acronycine comme intermédiaires. Les 1
APA, Harvard, Vancouver, ISO, and other styles
36

Calheiro, Tainara Paulus. "(Benzo[d]azolil)guanidinas: reações de ciclocondensação com trifluoracetil enol éteres na síntese de N-(pirimidinil)-1H-(benzo[d]azolil)aminas e N-derivados." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/10590.

Full text
Abstract:
Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>The present research describes a simple and efficient procedure to synthesize a novel series of twenty N-(pyrimidinyl)-1H-(benzo[d]azolyl)amines, from the cyclocondensation reaction of (benzo[d]azolyl)guanidines with 4-alkoxy-4-alkyl(aryl/heteroaryl)-1,1,1-trifluoroalk-3-en-2-ones and 2,2,2-trifluor-1-(2-methoxycyclohexen-1-en-1-yl)ethanone. The (benzo[d]azolyl)guanidines precursors were further obtained from reactions of cyanoguanidine with o-phenylenediamine or 2-aminothiophenol and the trifluoromethylated vinyl ketones from tr
APA, Harvard, Vancouver, ISO, and other styles
37

Bauschlicher, Tanja. "Photocycloadditionen captodativer Olefine an Indole, Benzo(b)thiophene und -furane." [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965910733.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Mbere, Johana M. "Development of new benzo[b]thiophene amide-based antimicrobial agents." Department of Chemistry - Faculty of Science, 2005. http://ro.uow.edu.au/theses/396.

Full text
Abstract:
The overall aim of this project was to investigate the synthesis and activity of a range of compounds based on the benzo[b]thiophene-2-carboxamide structural motif as potential new antimalarial agents, and to a lesser extent as antibacterial agents.In order to subsequently explore any structure-biological activity relationships, the first part of the project involved the systematic synthesis of some 39 non-fused substituted benzo[b]thiophene amide derivatives including tetrahydroisoquinolines, tetrahydro-β-carbolines, dihydropyrroles, piperazines, piperidines and other bridged ring systems as
APA, Harvard, Vancouver, ISO, and other styles
39

Friedman, Mark Richard. "Novel thermotropic liquid crystals possessing a benzo[b]furan unit." Thesis, University of Hull, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342980.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Tremmel, Tim [Verfasser]. "Entwicklung biologisch aktiver Canthine und Benzo[a]carbazole / Tim Tremmel." München : Verlag Dr. Hut, 2016. http://d-nb.info/1100968083/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Ouchani, Farid. "Evaluation du potentiel anti-leucémique d'une benzo(c)phénanthridine, l'Ethoxyfagaronine." Thesis, Reims, 2011. http://www.theses.fr/2011REIMS002/document.

Full text
Abstract:
Les leucémies aigües se caractérisent par une prolifération incontrôlée et par l'augmentation accrue de cellules hématopoïétiques immatures dans la circulation sanguine conduisant à l'infiltration de nombreux organes. Un certain nombre de mécanismes tels que la protéolyse matricielle, l'adhérence cellulaire et l'angiogénèse participent à ce processus d'infiltration extramédullaire et favorisent l'apparition de rechute suite au traitement chimio-thérapeutique. Notre projet s'intéresse à l'éthoxyfagaronine, une benzo(c)phénantridine dérivée de la fagaronine. Au cours de notre étude, nous avons m
APA, Harvard, Vancouver, ISO, and other styles
42

Gassa, F. "New synthesis and new derivatives of benzo[c] rhenanthridine alakaloyds." Doctoral thesis, Università degli Studi di Milano, 2009. http://hdl.handle.net/2434/153938.

Full text
Abstract:
Between alkaloids extracted from Chelidonium majus, we focused our researches on chelidonine , a hexahydrophenanthridine derivative functionalized with a hydroxyl group at C-11 and that is characterized by the presence of two methylenedioxy functions on the aromatic rings. A basic nitrogen and three stereocentres. Studies on the biological activity of this molecule were reported but the mechanism of its action as anticancer agent is not clearly understood. A part Ukrain, a semi-synthetic derivative deriving from chelidonine and tiotepa a lack of extensive SAR studies in the oncogenic field
APA, Harvard, Vancouver, ISO, and other styles
43

Almeida, João Vasconcellos de. "Efeitos tóxicos de benzo(a)pireno sobre a macroalga vermelha Gracilaria birdiae." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/46/46131/tde-21072010-082114/.

Full text
Abstract:
Os organismos chamados de algas apresentam uma grande diversidade de espécies e ocupam uma grande variedade de nichos ecológicos. Fundamentais para a manutenção das condições que permitem a vida no planeta, inclusive porque constituem a base de cadeias tróficas de ecossistemas aquáticos, as algas vêm sofrendo com o descarte contínuo de resíduos resultantes das mais variadas atividades humanas. Por outro lado, as algas, ao serem expostas aos poluentes, podem indicar a presença dos mesmos em seus habitats por meio de seus biomarcadores. Neste sentido, este trabalho preocupou-se em caracterizar a
APA, Harvard, Vancouver, ISO, and other styles
44

Tonne, Jörn. "The mechanism of an unusual benzo-benzo photocycloaddition reaction photophysical and photochemical investigation of [3.3] orthocyclophanes with two face-to-face preoriented benzenoid chromophores [[Elektronische Ressource] /." [S.l. : s.n.], 2001. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB9381988.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Nordling, Mirjam. "Characterization of toxicological effects of a novel in vivo benzo[a]pyrene metabolite in colonic cells /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7140-034-6/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Wang, Yixi, and 王义熙. "Exposure to benzo[a]pyrene and breast cancer : a systematic review." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206972.

Full text
Abstract:
Objective: Breast cancer is the most common invasive cancer in women in the world. Benzo[a]pyrene (B[a]P), a carcinogenic component of cigarette smoke and grilled meat, was related to expression of enzymes involved in several epithelial malignancies including breast cancer. Understanding the association of exposure to B[a]P and breast cancer risks may inform potential disease preventive measures. The objective of this systematic review was to assess from epidemiological studies the relationship between the exposure to and the risks and development of breast cancer in humans. Study design: A
APA, Harvard, Vancouver, ISO, and other styles
47

Boyle, Rosemary. "Synthesis, structure and stereochemistry of metabolites from benzo-fused oxygen heterocycles." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333789.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

King, Geoffrey. "Substituted poly(benzo[c]thiophenes) : new low band-gap conducting polymers." Thesis, University of Liverpool, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283058.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Lawrence, Deirdre Michelle. "DNA adducts as molecular biomarkers of exposure to benzo(a)pyrene." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/42792.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Azeredo, Antonio. "Determinação de benzo(a) pireno em pescados comercializados em Campinas-SP." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254999.

Full text
Abstract:
Orientador : Maria Cecilia de Figueiredo Toledo<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-07-27T22:01:59Z (GMT). No. of bitstreams: 1 Azeredo_Antonio_M.pdf: 1864873 bytes, checksum: 56f9b654732a9202de6eae08d42b64af (MD5) Previous issue date: 2001<br>Resumo: Hidrocarbonetos policíclicos aromáticos (HPAs), entre os quais o benzo(a)pireno (B[a]P) é um doa mais estudados, são contaminates formados pela pirólise incompleta da matéria orgânica tecnológicos. Estes compostos estão presentes no meio ambiente
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!