Synthesis of (22<i>R</i>,23<i>R</i>)‐ and (22<i>S</i>,23<i>S</i>)‐[4‐¹⁴C]‐24‐EPIBRASSINOLIDE

Abstract

Abstract The title compounds were synthesized for metabolic studies in plants and animals, with 14 C labelling being made at position 4 of the epibrassinolides 4 and 5 in an overall radiochemical yield of 3.22% and 4.46%, respectively, based on barium [ 14 C]carbonate.