Isolation of new esters from the stems of<i>Cinnamomum reticulatum</i>Hay

Abstract

The stems of Cinnamomum reticulatum Hay (Lauraceae) were extracted with hexane and chloroform successively. A series of new esters, including a mixture of 4-hydroxy-3-methoxyphenethyl derivatives (1–5), along with two butanolides, isoobtusilactone A (6) and obtusilactone A (7), two amides, N-trans-feruloylmethoxytyramine (8) and N-cis-feruloyl-methoxytyramine (9), three benzenoids, p-hydroxybenzoic acid (10), syringic acid (11) and vanillic acid (12), one lignan, (+)-syringaresinol (13) and one steroid, β-sitostenone (14), were isolated. The structures of the new esters were elucidated by chemical and physical evidence.