A fully regiocontrolled synthesis of desacetamidoisocolchicine: formal total synthesis of colchicine

Abstract
The tetracyclic compound 3a, which has been synthesised in nine steps from the known cyclohexenone 6, reacts with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) to give desacetamidoisocolchicine 2 in 84% yield; the acquisition of 2 constitutes a formal total synthesis of the alkaloid colchicine 1.

This publication has 0 references indexed in Scilit: