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  • [Studies on the chemical constituents from stem of Chirita longgangensis var. Hongyao].

[Studies on the chemical constituents from stem of Chirita longgangensis var. Hongyao].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica (2006-05-19)
Man-Yuan Wang, Lan Yang, You-You Tu
ABSTRACT

To isolate and elucidate the constituents from stem of Chirita longgangensis var. hongyao. 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. 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. 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.

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2-Methylanthraquinone, technical, ≥95% (HPLC)
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Sigma-Aldrich
2-(Hydroxymethyl)anthraquinone, 97%
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