Synthesis of tryptophan stereoselectively labelled with tritium and deuterium in the β-methylene group; the steric course of hydroxylation in sporidesmin biosynthesis
Abstract
The (3R)- and (3S)-forms of [3-3H]tryptophan have been synthesised by the oxazolinone method and used to show that side-chain hydroxylation in the bio-synthesis of sporidesmin A takes place with retention of configuration at the site of attack.