2H n.m.r. determination of the stereochemistry of an allylic displacement in the biosynthesis of virescenol B
作者:David E. Cane、Heinz Hasler、Joan Materna、Nera Cagnoli-Bellavita、Paolo Ceccherelli、Gian Federico Madruzza、Judith Polonsky
DOI:10.1039/c39810000280
日期:——
Feeding of (5R)-[5-2H]mevalonate to Oospora virescens and 2H n.m.r. analysis of a derivative of the resulting virescenolB establish that the allylic displacement of pyrophosphate which generates ring c takes place with overall anti stereochemistry.
将(5 R)-[5- 2 H]甲羟戊酸酯进料到豌豆孢菌中,并且对所得豌豆酚B的衍生物进行2 H nmr分析,确定生成环c的焦磷酸的烯丙基取代发生在总体抗立体化学上。
Reductions of diterpene epoxides. A partial synthesis of 8.beta.-hydroxyisopimar-15-ene