Extractives of Balsamodendron pubescens: Stocks, Hook. Isolation and a new synthesis of siderin

Abstract

β-Sitosterol and cedrelone have been obtained from the hexane extract of the roots ofBalsamodendron pubescens Stocks, Hook. A dimethoxy methyl coumarin isolated has been characterised as siderin (VIII) (4,7-dimethoxy-5-methyl coumarin). A new synthesis of siderin as well as 6,8-dimethoxy-4-methyl coumarin (II) is also reported.