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出 处:《Acta Botanica Sinica》2001年第2期193-197,共5页Acta Botanica Sinica(植物学报:英文版)
摘 要:Three new phenolic glycosides, named as equisetumoside A (3-methoxy-11,12-dihydroxy-phenylhexane-9- one-4-O-beta -D-glucopyranoside), equisetumoside B (3-methoxy-4,11-dihydroxy-phenylhexane-9-one12-O-beta -D-glucopyranoside) and equisetumoside C ( cis-ferulic acid potassium salt 4-O-beta -D-glucopyranoside) were isolated from the water-soluble extract of fertile sprouts of Equisetum, arvense L. (Equisetaceae), together with uridine, inosine, 2'-deoxyinosine, 2'-deoxycytidine, tryptophan, thymidine, 5-carboxy-2'-deoxyuridine, coniferin, and kaempferol 3-O-beta -D-sophoroside-7-O-beta -D-glucopyranoside. Their structures were elucidated by spectroscopic analysis and chemical transformation.从问荆 (EquisetumarvenseL .)营养茎的水溶性成分中分离到 12个化合物。经波谱解析和化学方法鉴定 ,其中 3个新的酚甙化合物分别命名为equisetumosideA (3_methoxy_11,12_dihydroxy_phenylhexane_9_one_4_O_β_D_glucopyra noside)、equisetumosideB (3_methoxy_4,11_dihydroxy_phenylhexane_9_one_12_O_β_D_glucopyranoside)和equisetumosideC (cis_ferulicacidpotassiumsalt 4_O_β_D_glucopyranoside) ;其他成分鉴定为尿甙、次黄甙、2′_脱氧次黄甙、2′_脱氧胞甙、色氨酸、胸甙、5_羧基_2′_脱氧尿甙、松柏甙和莰非醇_3_O_β_D_槐糖基_7_O_β_D_吡喃葡萄糖甙。这些化合物均为首次从该植物中分离得到。
关 键 词:Equisetum arvense phenolic glycosides equisetumoside A equisetumoside B equisetumoside C
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