A new alkaloids isolated from tetraploidy banlangen / 药学学报

ABSTRACT

<p><b>AIM</b>To investigate the chemical constituents of tetraploidy Banlangen (Isatis indigotica Fort.).</p><p><b>METHODS</b>Compounds were separated by chromatography on silica gel. Their structures were determined by spectral analysis and chemical evidence.</p><p><b>RESULTS</b>Three compounds were isolated. Their structures were identified as (E)-2-[(3'-indole) cyanomethylene]-3-indolinone (I), 2-(4-hydroxy-3-methoxyphenyl)-4-[(4-hydroxy-3-methoxy-phenyl)-methyl]-3- hydroxymethyl-tetrahydro-furan (II) and 2-methoxy-4-[tetrahydro-4-[(4-hydroxy-3-methoxy-phenyl)-methyl]-3- hydroxymethyl-2-furanyl] phenyl-1-O-beta-D-glucopyranoside (III).</p><p><b>CONCLUSION</b>Compound I is a new compound.</p>