Chemical constituents from roots of Incarvillea mairei / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents of the roots of Incarvillea mairei.</p><p><b>METHOD</b>The chemical constituents were isolated and purified by chromatographic techniques with silica gel, Sephadex LH-20 column, and preparative TLC. Structures of the compounds were identified by spectroscopic methods.</p><p><b>RESULT</b>Seven compounds were obtained and elucidated as 1-O-methyl-guaiacylglycerol (1), 1-O-feruloyl-3-O-(26"-hydroxylhexacosoyl) glycerol (2), incarvine D (3), piceid (4), 6'-8"E, 11"E-octadecadienoyl-clionasterol-3-glucoside (5), beta-sitosterol (6), and beta-daucosterol (7).</p><p><b>CONCLUSION</b>Compounds 1-7 were isolated from I. mairei, and among them 1 and 2 were new compounds, 4, 5 were isolated from the genus Incarvillea for the first time.</p>

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

<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>