Chemical constituents from acetyl acetate extract fraction of Incarvillea delavayi / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate chemical constituents from acetyl acetate extract fraction of Incarvillea delavayi.</p><p><b>METHOD</b>The chemical constituents were isolated by chromatographic techniques with silica gel, Sephadex LH-20 and semipreparative HPLC. The structures of those compounds were identified by NMR and MS.</p><p><b>RESULT</b>Seven compounds were isolated from the EtOAC extract of I. delavayi and their structures were identified as leucoseceptoside A (1), martynoside (2), cornoside (3), edgeworthin (4), 1,2,4-trimethoxybenzene (5), protocatechuic acid (6) and 3-hydroxy-p-anisaldehyde (7) , respectively. Compounds 1-2 were phenylpropanoid glycosides.</p><p><b>CONCLUSION</b>Compounds 3, 4 were obtained from the genus Incarvillea for the first time. Compounds 1-2, 5-7 were first isolated from this plant.</p>