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Relevant bibliographies by topics / Stigmastan

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Academic literature on the topic 'Stigmastan'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Stigmastan"

1

Zhang, Zhong Feng. "Analysis on Pyrolytic Behavior of Wheat Straw Multifunctional Materials by Py-GC-MS." Advanced Materials Research 496 (March 2012): 194–97. http://dx.doi.org/10.4028/www.scientific.net/amr.496.194.

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In order to learn of pyrolytic behavior of wheat straw multifunctional materials, the extractives of wheat straw biomass were adsorbed and determined by Py-GC-MS. And the main constituents were stigmasterol, vitamin e, campesterol, .gamma.-sitosterol, stigmasterol, 22,23- dihydro-, nonacosane, stigmastan-3,5,22-trien, heneicosane, lup-20(29)-en-3-one, 1,2- benzenedicarboxylic acid, buty l 2-methylpropyl ester, stigmast-4-en-3-one, stigmastan-3,5-diene, 4,22-stigmastadiene-3-one, cholest-5-en-3-ol (3.beta.)- , pyridine-3-carboxamide, oxime, etc.

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Wachsman, Mónica B., Elsa MF López, Javier A. Ramirez, Lydia R. Galagovsky, and Celia E. Coto. "Antiviral Effect of Brassinosteroids against Herpes Virus and Arenaviruses." Antiviral Chemistry and Chemotherapy 11, no. 1 (2000): 71–77. http://dx.doi.org/10.1177/095632020001100107.

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A natural brassinosteroid and a series of synthetic derivatives were found to be good inhibitors of herpes simplex virus type 1 (HSV-1) and arenavirus replication in cell culture. The synthetic compounds tested were analogues of the 24(S) ethylbrassinone. Compounds (22R,23R,24S)-2α, 3α,5α,22,23-pentahydroxy-stigmastan-6-one and (22R,23R,24S)-3β-bromo-5α,22,23-trihydroxy stigmastan-6-one were cytotoxic at concentrations of 20–40 µM. (22S,23S,24S)-2α,3α,22,23-tetrahydroxy-5α,stigmastan-6-one, (22R,23R,24S)-3β-acetoxy-22,23-dihydroxy-5α-cholestan-6-one, (22S,23S,24S)-3β-bromo-22,23-dihydroxy-5α-c

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3

Wang, Lan Sheng, and Wan Xi Peng. "Py-GC-MS Analysis on Biomass Energy Components from Wood Extractives of Eucalyptus urophydis under High Temperature." Applied Mechanics and Materials 164 (April 2012): 30–32. http://dx.doi.org/10.4028/www.scientific.net/amm.164.30.

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In order to widely use Eucalyptus urophydis wood, its ether/acetone extractives were identified by Py-GC/MS. The main and abundant constituents of 750°С pyrolysis products were 1,3-butadiene, 2-methyl-(5.9%), benzofuran, 2,3-dihydro-(4.11%), 1,3-butadiene(3.69%), stigmastan-3,5-diene (3.66%),.gamma.-sitosterol(2.13%), 2-butene, 2,3-dimethyl-(2.03%), toluene (1.92%), 1,4- cyclohexadiene,1-methyl-(1.76%), 1h-indene, 5-butyl-6-hexyloctahydro-(1.73%), 1,3-cyclohexadiene(1.66%), phenol(1.58%), 1-hexene(1.54%), sulfide, bis(2-cyano-3,4- dihydro- 2,3,3-trimethyl-2h-pyrrol-5-yl)- (1.46%), benzene(1.38

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Rufai, Y., N. Basar, and A. Sani. "Optimization and Isolation of 4,8,12,16-Tetramethylheptadecan-4-olide from Deinbollia pinnata." Asian Journal of Chemistry 31, no. 11 (2019): 2503–11. http://dx.doi.org/10.14233/ajchem.2019.22165.

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Manual agitation on ultrasonic assisted extraction process, fractionation, isolation and purification afforded 4,8,12,16-tetramethylheptadecan-4-olide (1) along with 11 compounds 2-12 i.e., squalene (2), phytyl palmitate (3), lupeol (4), taraxasterol (5), myristic acid (6), palmitic acid (7), campesterol (8), stigmasterol (9), λ-sitosterol (10), stigmastan-3, 5-diene (11) and stigmasta-5,22-diene-3-ol acetate (12). Their structures were elucidated spectroscopically (2D NMR, IR, GC-MS and 1D NMR). The optimal conditions for high yield of extracts were obtained at 45 °C, after 35 min and solvent

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Bernardo, Yamilé, Esther Alonso, Francisco Coll, Danahe Coll-García, Carlos Pérez та Georgina Agüero. "Synthesis of (22R,23R)-22,23-epoxy-3β,5α-dihydroxystigmastan-6-one from Stigmasterol". Journal of Chemical Research 2005, № 7 (2005): 475–77. http://dx.doi.org/10.3184/030823405774309203.

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Chou, Shen-Chieh, Vivek Krishna, and Chang-Hung Chou. "Hydrophobic Metabolites from Rhododendron formosanum and their Allelopathic Activities." Natural Product Communications 4, no. 9 (2009): 1934578X0900400. http://dx.doi.org/10.1177/1934578x0900400906.

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Eighteen components were isolated from the methanolic extract of leaves of Rhododendron formosanum Hemsl. (Ericaceae), an endemic species in Taiwan, and evaluated for their allelopathic properties. Of the isolated compounds, 3 β-friedelinol, 5,6β-epoxy-5β-stigmastan-3β-ol, 5,6α-epoxy-5α-stigmastan-3 β-ol, lupeol and ursolic acid revealed inhibitory effects at 10−4 M or above, whereas α-tocopherol, friedelin and β-amyrin acetate exhibited stimulatory effects on the radicle growth of the test plants at the same concentration or above. However, squalene and α-amyrin showed either a stimulatory or

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AVIJIT, BANERJI, NANDI GOPA та BARAN KUNDU AMIT. "Investigation of Croton caudatus Geisellsolation of Stigmastan-3,6-dione, 5α". Journal of Indian Chemical Society Vol. 65, Jun 1988 (1988): 459. https://doi.org/10.5281/zenodo.6303623.

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Chemistry Department, University College of Science, Calcutta -700 009 Regional Research Institute, C.C.R.A.S., Calcutta-700 009 <em>Manuscript received 17 June 1987, </em>revised <em>6 April</em> <em>1988, accepted 12 April 1988</em> Investigation of <em>Croton caudatus</em> Geisellsolation of Stigmastan-3,6-dione, 5α.

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Rachmi Ridho, Bambang Pontjo Priosoeryanto, Esti Mumpuni, Andri Prasetiyo, and Syamsudin Abdillah. "In Silico Studies: Stigmastan-3,6-dione in the Ethyl Acetate Fraction of Momordica charantia L Fruit has immunostimulant and anti-inflammatory activity." Journal of Natural Product for Degenerative Diseases 2, no. 1 (2024): 1–14. http://dx.doi.org/10.58511/jnpdd.v2i1.6865.

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Momordica charantia L fruit provides an immunomodulatory effect by stimulating certain components of the body's immune system. Bioactive phytochemicals from M. charantia L function as anti-inflammatory agents by reducing levels of pro-inflammatory cytokine secretion including IL-1, IL-6, IL-8, TNF-α, NF-kB. This research looks at the insilico mechanism of action of the active ingredient of the EtOAc fraction of M. charantia L fruit as an immunostimulant and anti-inflammatory. The materials and methods used were an Intel Core i7 10 Th Gen laptop, Chem Office Professional 17.1, Chem 2D, Chem 3D

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Ma, Qing Zhi, Chao Feng Zeng, Wan Xi Peng, and Xu Zhang. "Analysis on Active Behavior of Bagasse by Py-GC-MS." Advanced Materials Research 230-232 (May 2011): 212–16. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.212.

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In order to find out its active behavior, the extractives of bagasse biomass were adsorbed and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-di methyl-7- (1-methylethyl)-(52.25%), stigmastan- 3,5-diene (11.3%), 2(1h)-phenanthrenone, 3,4,4a, 9,10,10a-hexahydro-7-hydroxy-1,1,4a-tri methyl-8- (1-methylethyl) - (9.00%), 2- furancarboxaldehyde, 5-(hydroxym ethyl)- (6.25%), etc.

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Yang, Ai Mei, Hui Li, Jie Li Liu, Wei Jie Guo, and Rui Wu. "Chemical Constituents of Euphorbia altotibetica." Advanced Materials Research 634-638 (January 2013): 905–8. http://dx.doi.org/10.4028/www.scientific.net/amr.634-638.905.

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Nine compounds were isolated from the petroleum ether extract of Euphorbia altotibetica. The structures of these compounds were elucidated as: squalene (1), β-sitosterol acetate (2), 11, 15, 19, 23-tetramethy-5, 9, 17-tetracosatrienoic acid (3), physcion (4), (z)-10-nonadecenoic acid (5), (z)-4-undecenoic acid (6), β-sitosterol (7), (24S)-stigmastan-4-en-3-one (8), naringenin (9). These compounds were identified on the basis of comparing their NMR datas with those of corresponding compounds in the literature.

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Dissertations / Theses on the topic "Stigmastan"

1

Firman, Christopher. "Formation of stigmasta-3,5-diene and its analysis in refined olive oil." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298750.

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Chang, Yu-Ching, and 張郁菁. "Investigation on production of stigmastane-3,6-dione by Ustilago esculenta and fermentor." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/mvk9uf.

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碩士<br>國立暨南國際大學<br>應用化學系<br>102<br>Cancer drug resistance is a major cause of death for cancer patients. Many mechanisms of drug resistance have been known. The most famous cancer drug resistance protein is p-glycoprotein, which is a transmembrane protein and may help cancer cells to exclude anti-cancer drugs. Recently, the studies indicated that stigmastane-3 ,6-dione extracted from water bamboo can not only significantly reduce the expression of P-glycoprotein but also inhibit the proliferation of liver cancer cells and osteoclast activity. Stigmastane-3,6-dione is a semi-synthesized so the

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3

Lai, Liang-Yu, and 賴良羽. "The Production Of Stigmastane-3,6-dione From Ustilago Esculenta Using Response Surface Methodology, And The Evaluation Of Bioactivity And Structural Analysis Of Composition A-1 Stimulated By Distiller Grain Liquid." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/mdwk89.

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碩士<br>國立暨南國際大學<br>應用化學系<br>102<br>Stigmastane-3 ,6-dione have been found in many biological activities, but it takes a lot of time and money to acquire just a small amount of it. In this study, we have utilized Ustilago Esculenta to produce a numerous amount of stigmastane-3,6-dione. The first part of the experiment was to use what we called the Response Surface Methodology for finding the optimal condition in producing stigmastane-3,6-dione with the use of Ustilago Esculenta. Ustilago Esculenta has been reported to slow down the osteoporotic process, which has been believed to be induced by s

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Books on the topic "Stigmastan"

1

Ahmad, Viqar Uddin, and Anwer Basha, eds. Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-39571-5.

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Ahmad, Viqar Uddin, and Anwer Basha, eds. Spectroscopic Data of Steroid Glycosides: Stigmastanes, Furostanes, Spirtostanes. Springer US, 2006. http://dx.doi.org/10.1007/978-0-387-39572-2.

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Book chapters on the topic "Stigmastan"

1

Winkelmann, Jochen. "Diffusion coefficient of stigmasta-5,22-dien-3-ol in trichloro-deuterio-methane." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_1018.

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2

Winkelmann, Jochen. "Diffusion coefficient of stigmast-5-en-3-ol in trichloro-deuterio-methane." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_1019.

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3

"Asterias Vulgaris Saponin 1." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_1.

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4

"Attenuatoside A-II." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_10.

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"Distolasteroside D5." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_100.

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6

"Downeyoside F." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_101.

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7

"Downeyoside J." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_102.

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8

"Downeyoside K." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_103.

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9

"Granulatoside B." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_104.

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10

"Asterosaponin D2, Distolasteroside D2." In Spectroscopic Data of Steroid Glycosides: Cholestanes, Ergostanes, Withanolides, Stigmastane. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-39571-5_105.

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