Synthesis and confirmation of structure of three 13,15β-dihydroxy C-20 gibberellins, GA 100, GA 101 and GA 102, isolated from the seeds of Helianthus annuus L.

Abstract

The structures of three 13,15β-dihydroxylated C-20 gibberellins isolated from the seeds of Helianthus annuus have been confirmed by partial synthesis of authentic samples from gibberellic acid and GC-mass spectral comparison with the endogenous samples.