作者:M.T. Calabuig、M. Cortés、C.G. Francisco、R. Hernández、E. Suárez
DOI:10.1016/0031-9422(81)80124-0
日期:1981.1
trimethoxykaempferol, cativic acid, labdenic acid, labdanolic acid and labdan-8α,15-diol, three new bicyclic diterpenes: cistadienic acid, cistenolic acid and labd-13( E )- ene-8α,15-diol. The structures of these were determined by spectral studies and correlations. CD spectral studies showed that cistenolic acid and salvic acid are enantiomeric compounds, so the stereochemistry of salvic acid (7α-hydroxy-
摘要 对岩蔷薇地上部分的研究提供了除谷甾醇、三甲氧基山奈酚、阳离子酸、劳丹酸、劳丹醇酸和劳丹醇-8α,15-二醇外,三种新的双环二萜类化合物:顺斯达二烯酸、香醇酸和labd-13。 ( E )- ene-8α,15-二醇。这些的结构是通过光谱研究和相关性确定的。CD光谱研究表明,cisenolic acid和salvic acid是对映体化合物,因此salvic acid的立体化学(7α-hydroxy-labd-8(17)-ene-15-oic acid)应改为7β-hydroxy-eperu-8 (17)-ene-15-油酸(7β-羟基-ent-labd-8(17)-烯-15-油酸)。