Studies on Nepalese Crude Drugs. XXIX. Chemical Constituents of Dronapuspi, the Whole Herb of Leucas cephalotes SPRENG
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概要
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From the whole herb of Leucas cephalotes SPRENG., new labdane-, norlabdane- and abietane-type diterpenes named leucasdins A (1), B (2) and C (3), respectively, and two protostane-type triterpenes named leucastrins A (4) and B (5) were isolated, together with a known triterpene, oleanolic acid, five sterols, 7-oxositosterol, 7-oxostigmasterol, 7α-hydroxysitosterol, 7α-hydroxystigmasterol and stigmasterol, and eight flavones, 5-hydroxy-7,4'-dimethoxyflavone, pillion, gonzalitosin I, tricin, cosmosin, apigenin 7-O-β-D-(6-O-P-coumaroyl)glucopyranoside, anisofolin A and luteolin 4'-O-β-D-glucuronopyranoside. The structures of 1-5 were determined as (3S,6R,8R,9R,13S,16S)-9,13,15,16-bisepoxy-3,16-diacetoxy-6-formyloxylabdane, (3S,6R)-3-acetoxy-6-formyloxy-iso-am-breinolide, (4R,9S,12R,13R)-12,13-dihydroxyabiet-7-en-18-oic acid, (3S,17S,20S,24S)-3,20-dihydroxy-24-methylprotost-25-en, and (3S,17S,20S,24S)-3,20,24-trihydroxyprotost-25-en respectively, based on spectral and chemical data.
- 公益社団法人日本薬学会の論文
- 2006-10-01
著者
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MIYAICHI Yukinori
Department of Pharmacognosy, Pharmaceutical Sciences, Hokuriku University
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TOMIMORI Tsuyoshi
Department of Pharmacognosy, Pharmaceutical Sciences, Hokuriku University
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Segawa Akiko
Department Of Pharmacognosy Pharmaceutical Sciences Hokuriku University
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Miyaichi Y
北陸大学 薬学科生薬学
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Miyaichi Yukinori
Department Of Pharmacognosy Faculty Of Pharmacy Hokuriku University
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Miyaichi Yukinori
Department Of Pharmacognosy Pharmaceutical Sciences Hokuriku University
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Tomimori T
Department Of Pharmacognosy Pharmaceutical Sciences Hokuriku University
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Tomimori Tsuyoshi
Department Of Pharmacognosy Pharmaceutical Sciences Hokuriku University
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Tomimori Tsuyoshi
Research Institute For Wakan-yaku (traditional Sino-japanese Medicine) Toyama Medical And Pharmaceut
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