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Constituents from Ranunculus sieboldii Miq. 被引量:7
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作者 潘云雪 周长新 +2 位作者 张水利 郑筱祥 赵昱 《Journal of Chinese Pharmaceutical Sciences》 CAS 2004年第2期92-96,共5页
Aim To investigate the chemical composition of Ranunculus sieboldii Miq..Methods Repeated column chromatography over silica gel, polyamide and RP-18 followed by gelfiltration on sephadex LH-20 were used to isolate che... Aim To investigate the chemical composition of Ranunculus sieboldii Miq..Methods Repeated column chromatography over silica gel, polyamide and RP-18 followed by gelfiltration on sephadex LH-20 were used to isolate chemical constituents, and their structures wereelucidated by extensive spectroscopic methods (UV, IR, MS, ~1H NMR, ^(13)C NMR) including 2D NMR(COSY, HMQC, HMBC, NOESY) techniques and by direct comparing spectral data with those reported inliterature. Results Five flavonoid glycosides named apigenin-4'-O-α-L-rhamnopyranoside (1),apigenin-7-O-β-D-glucopyranosyl-4'-O-α-L-rhamnopyranoside (2), apigenin-8-C-α-L-arabinopyranoside(3), apigenin-8-C-β-D-ga-lactopyranoside (4) , tricin-7-O-β-D-glucopyranoside (5), together withtricin (6), luteolin (7), scopoletin (8), esculetin (9), scoparone (10), ferulic acid (11),protocatechuic acid (12) , and tematolide (13) were isolated from the 95% etha-nolic extract of itswhole plant, and their cytotoxic activities were preliminarily tested. Conclusion Compounds 1-12were obtained from this genus and compound 13 from this species for the first time. Furthermore,compound 1 was for the first time isolated from nature while the ^(13)C NMR data of compounds 2 and3 are reported for the first time. The bioassay revealed that compound 1 was active against BEL-7407and A549 cell lines (IC_(45) 43, 77 μg·mL^(-1)), 8 and 10 showed inhibitory activities on KB celllines (IC_(50) 78, 44 μg·mL^(-1)) and HL-60 cell lines (Ic_(50) 85, 85 μg·mL^(-1)), while 7exerted moderate cytotoxic activities on KB, BFL-7407, A549 and HL-60 cell lines with their IC_(50)being 51, 55, 44 and 10 μg·mL^(-1) , respectively. 展开更多
关键词 ranunculus sieboldii miq. flavonoid glycosides apigemn-4'-o-α-l-rhamnopyranoside apigenin-8-C-α-L-arabinopyranoside apigenin-7-o-β-D-glucopvranosyl-4'-o-α-l-rhamnopyranoside cytotoxicity
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Two New Flavonol Glycosides from Knoxia corymbosa
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作者 YuBoWANG ShuangXiMEI +5 位作者 YaoHuaWANG JingFengZHAO HaiYingREN JieGUO HongBinZhANG LiangLI 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第9期923-925,共3页
Two new flavonol glycosides (1 and 2) together with two known flavonoides (3 and 4), were isolated from the whole plant of Knoxia corymbosa willd. The structures of 1 and 2 were elucidated as kaempferol-7-O-α-L-arabi... Two new flavonol glycosides (1 and 2) together with two known flavonoides (3 and 4), were isolated from the whole plant of Knoxia corymbosa willd. The structures of 1 and 2 were elucidated as kaempferol-7-O-α-L-arabinosyl-3-O-β-D-6'-acetylglucopyranoside and kaempferol -7-O-α-L-arabinosyl-3-O-β-D-3',6'-diacetylglucopyranoside respectively. 展开更多
关键词 Knoxia corymbosa flavonol glycoside kaempferol-7-o-α-L-arabinosyl-3-o-β-D-6'-acetylglucopyranoside kaempferol-7-o-α-L-arabinosyl-3-o-β-D-3' 6'-diacetylglucopyranoside.
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