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Gnetucleistol D
Gnetucleistol D is a stilbenoid found in the Chinese herb ''Gnetum cleistostachyum ''Gnetum cleistostachyum'' is a liana species in the ''Sessiles'' subsection of the genus '' Gnetum'' described from South East Yunnan. The name is still invalid and efloras states it is advisable to postpone validating it until more complete ....Stilbenes from Gnetum cleistostachyum. Yao Chun-Suo, Lin Mao, Liu Xin and Wangy Ying-Hong, Huaxue xuebao, 2003, vol. 61, no 8, pages 1331-1334, References Stilbenoids {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stilbenoid
Stilbenoids are hydroxylated derivatives of stilbene. They have a C6–C2–C6 structure. In biochemical terms, they belong to the family of phenylpropanoids and share most of their biosynthesis pathway with chalcones. Most stilbenoids are produced by plants, and the only known exception is the antihelminthic and antimicrobial stilbenoid, 2-isopropyl-5- ''E'')-2-phenylvinylenzene-1,3-diol, biosynthesized by the Gram-negative bacterium ''Photorhabdus luminescens.'' Chemistry Stilbenoids are hydroxylated derivatives of stilbene and have a C6–C2–C6 structure. They belong to the family of phenylpropanoids and share most of their biosynthesis pathway with chalcones. Under UV irradiation, stilbene and its derivatives undergo intramolecular cyclization, called stilbene photocyclization to form dihydrophenanthrenes. Oligomeric forms are known as oligostilbenoids. Types ;Aglycones * Piceatannol in the roots of Norway spruces * Pinosylvin is a fungal toxin protecting wood ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gnetum Cleistostachyum
''Gnetum cleistostachyum'' is a liana species in the ''Sessiles'' subsection of the genus '' Gnetum'' described from South East Yunnan. The name is still invalid and efloras states it is advisable to postpone validating it until more complete collections, particularly with seeds, can be studied. The stilbene derivatives, gnetucleistol A, B and C, gnetifolin A, p-hydroxycinnamic acid, piceatannol, resveratrol, bisisorhapontigenin A, gnetuhainin P, gnetulin, the stilbenolignans, gnetucleistol F, gnetofuran A, lehmbachol D, gnetifolin F and gnetumontanin, gnetucleistol D (2-methoxyoxyresveratrol), gnetucleistol E (3-methoxy-isorhapontigenin), rhapontigenin, isorhapontigenin, 4-methoxyresveratrol and pinosylvin Pinosylvin is an organic compound with the formula C6H5CH=CHC6H3(OH)2. A white solid, it is related to trans-stilbene, but with two hydroxy groups on one of the phenyl substituents. It is very soluble in many organic solvents, such as acetone. O ... can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
