Quinones and Related Compounds in Higher Plants. VII. Supplementary Studies on the Constituents of the Wood of Catalpa ovata

Abstract

Two new compounds, 2-(4-hydroxyphenyl) ethyl triacontanoate (10) and 1-octacosanoyl glyceride (11), along with two known compounds, tetracosanoic acid (12) and n-hexacosyl ferulate (13), were isolated from the wood of Catalpa ovata G. DON and their structures were elucidated on the basis of spectral data and chemical degradations. Furthermore, catalponone (8), a key biosynthetic intermediate of prenylnaphthoquinone congeners of the plant, and deoxylapachol (9) were isolated for the first time from the same wood.