A new beta-naphthalenecarboxylic acid biglycoside from Chirita longgangensis var. hongyao.

Man-yuan Wang, Mu-xin Gong, Dong Zhang, Lan Yang

School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.

Yao xue xue bao = Acta pharmaceutica Sinica 2011 Feb

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To investigate the chemical constituents in the stems of Chirita longgangensis var. hongyao, methanol extract of the stems was subjected to column chromatography with various chromatographic techniques. One new beta-naphthalenecarboxylic acid biglycoside, 1, 4-dihydroxy-2-naphthalenecarboxylic acid methyl ester-4-O-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-glucopyranoside (1) was isolated, along with two known compounds: isotaxiresinol 4-O-methyl ether (2) and (R)-7-hydroxy-alpha-dunnione (3). Compound 2 was first obtained from Chirita genus and compound 3 was isolated from this plant for the first time. All structures were elucidated on the basis of spectral and chemical evidence, and the NMR spectroscopic data of compound 2 was published for the first time.

Citation

Man-yuan Wang, Mu-xin Gong, Dong Zhang, Lan Yang. A new beta-naphthalenecarboxylic acid biglycoside from Chirita longgangensis var. hongyao. Yao xue xue bao = Acta pharmaceutica Sinica. 2011 Feb;46(2):179-82