[Studies on the chemical constituents from stem of Chirita longgangensis var. Hongyao].
OBJECTIVE
To isolate and elucidate the constituents from stem of Chirita longgangensis var. hongyao.


METHODS
The constituents were extracted with methanol and isolated by chromatography on silica gel, Sephadex LH-20 and ODS. The structures were determined by NMR and MS spectral analysis.


RESULTS
Seven compounds were identified as 2-hydroxy-7-methyl-9, 10-anthraquinone (1), 2-methyl-9, 10-anthraquinone (tectoquinone) (2), ursolic acid (3), vanillic acid (4), beta-sitosteryl-D-glucoside-6'-palmitate (5), beta-sitosterol (6), daucosterol (7), respectively.


CONCLUSIONS
Compounds 1, 2, 3 and 5 were isolated for the first time from the family Gesneriaceae, compounds 4 and 6 were isolated for the first time from the genus Chirita, and compound 7 was isolated for the frist time from Chirita longgangensis var.
Wang
Man-Yuan
MY
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Yang
Lan
L
Tu
You-You
YY
D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D019684:Magnoliopsida / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D000097245:Ursolic Acid
D000880:Anthraquinones; D014315:Triterpenes; D000097245:Ursolic Acid; C077912:2-(hydroxymethyl)anthraquinone; C073955:2-methylanthraquinone