New phenolics from the wood of Casearia grewiifolia

► Chemical constituents of the medicinal plant of Casearia grewiifolia (Flacourtiaceae). ► Isolation and structure elucidation of phenolics, an amide, a lignan and steroids. ► Two new phenolics: threo- and erythro-2,3-bis(4-hydroxy-3-methoxyphenyl)-3-butoxypropan-1-ol.