Chemical constituents from Aeschynanthus longicaullis / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the chemical constituents from Aeschynanthus longicaullis.</p><p><b>METHOD</b>The column chromatographic techniques were applied to isolate the constituents. The spectroscopie methods were used of EI-MS and NMR to identify the structures of the separated compounds.</p><p><b>RESULT</b>Seven compounds were isolated from the ethyl acetate extract of A. longicaullis, whose structures were elucidated as cryptomeridiol (1), 4 (15) -eudesmene-1beta, 6alpha-diol (2), 2,5-bornanediol (3), isovanillic acid (4), vanillic acid (5), stigmast-5 (6) , 22 (23)-diene-3beta-ol (6) and beta-sitosterol (7).</p><p><b>CONCLUSION</b>Compounds 1-5 were isolated for the first time from Gesneriaceae and 6-7 were isolated for the first time from this plant.</p>