Acta Chimica Sinica ›› 1979, Vol. 37 ›› Issue (2): 119-128.
尚天民1, 王琳1, 梁晓天1, 林秀英2, 萧进明2, 牛守谦3
SHANG TIAN-MIN1, WANG LIN1, LIANG HSIAO-TIEN1, LIN XIU-YING2, XIAO JIN-MING2, NIU SHOU-LIAN3
Mao-Yan-Cao(Euphorbia Lunulata Bge.),a Chinese herb, has beneficial effect in the treatment of chronic bronchitis. Six crystalline compounds have been isolated from Mao-Yan-Cao by polyamide column chromatography and borax-ethyl acetate extracting method. Through spectroscopic analyses (UV, IR, NMR, MS) and the determination of physico-chemical constants, five of them have been identified as 3,5,7,4'-tetrahydroxyflavone (kaemperol),3,5,7,3',4'-pentahydroxyflavone(quercetin), kaompferol-3-mono-L-rhammoside, quercetin-3-mono-L-rhammoside and 6,7-dihy-droxycourmarin respectively. The sixth component is a new ooumarin derivative, named Maoyancaosu to which structure VI is tentatively assigned.
SHANG TIAN-MIN, WANG LIN, LIANG HSIAO-TIEN, LIN XIU-YING, XIAO JIN-MING, NIU SHOU-LIAN. STUDIES ON THE CONSTITUENTS OF MAO-YAN-CAO(EUPHORBIA LUNULATA BGE.)[J]. Acta Chimica Sinica, 1979, 37(2): 119-128.
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