[Chemical constituents from Aeschynanthus longicaullis].
OBJECTIVE
To study the chemical constituents from Aeschynanthus longicaullis.


METHODS
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.


RESULTS
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).


CONCLUSIONS
Compounds 1-5 were isolated for the first time from Gesneriaceae and 6-7 were isolated for the first time from this plant.
Chen
Lin
L
Institute of Natural Products, Pharmaceutical College, Henan University, Kaifeng 475004, China.
Kang
Wenyi
W
D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D019684:Magnoliopsida / Q000737:chemistry*
D004365:Drugs, Chinese Herbal