Partial syntheses of 2-hydroxygibberellins; characterisation of two new gibberellins, A46 and A47
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 9,p. 1022-1028
- https://doi.org/10.1039/p19760001022
Abstract
A general method for the conversion of 3-hydroxygibberellins into the methyl esters of 2-hydroxygibberellins is described. Thus the structures of two new gibberellins have been established by partial syntheses of their methyl esters, namely, GA46(12)(ent-2α-hydroxygibberell-16-ene-7,19,20-trioic acid) from seed of Echinocystis macrocarpa and GA47(10)(ent-2β,3α,10-trihydroxy-20-norgibberell-16-ene-7,19-dioic acid 19,10-lactone) from cultures of Gibberella fujikuroi, strain GF-1a. The partial syntheses of the methyl esters of gibberellins A40(9), A34(4), and 3-epi-A34(11) are described. The anomalous opening of the epoxide (23) is noted.This publication has 1 reference indexed in Scilit:
- New metabolites of Gibberella fujikuroi—ITetrahedron, 1962