Synthesis of Taxodione, Royleanone, Cryptojaponol, and Methyl 11-Hydroxy-12-methoxy-7-oxoabieta-8,11)13-trien-18-oate

Abstract

Oxidation at the C-11 position of methyl 12-hydroxyabieta-8,11,13-trien-18-oate (II) and ferruginol (XXXII) were successfully carried out using benzoyl peroxide, and the resulting phenols (VII and XXXVII) were further converted into taxodione (III), royleanone (IV), cryptojaponol (V), and methyl 11-hydroxy-12-methoxy-7-oxoabieta-8,11,13-trien-18-oate (VI).