Stereochemistry of the S N, cyclization in the biosynthesis of ent-sandarocopimaradiene with enzyme extracts from seedlings of Ricinus communis L.
作者:Keith A. Drengler、Robert M. Coates
DOI:10.1039/c39800000856
日期:——
Incubation of (S)-[1-2H1]geranylgeranyl pyrophosphate (1b) with an enzyme extract from castor bean (Ricinus communis L.) seedlings produced (E)-[16-2H1]-ent-sandarocopimaradiene (3b); thus, the SN′ cyclization of the intermediate copalylpyrophosphate (2b) occurs with anti-stereochemistry.
(孵化小号) - 〔1- 2 ħ 1 ]焦磷酸香叶基香叶酯(1B)与来自蓖麻子(酶萃取物蓖麻L.)幼苗生产(ë) - [16- 2 ħ 1 ] - ENT -sandarocopimaradiene(3b中); 因此,中间体椰油酰基焦磷酸酯(2b)的S N '环化反应具有抗立体化学作用。