【摘要】 <正> 防己科植物蝙蝠葛(Menispermum dauricum DC.)的根茎,又名北豆根,是一常用中药,其总生物碱制成的北豆根片,临床用于咽喉炎的治疗;近年来又发现蝙蝠葛根茎中的主要生物碱-蝙蝠葛碱(dauricine)和酚性总碱均有较好的抗心律失常作用,并已用于临床治疗。由于蝙蝠葛新用途的发现,原料需求量日益增长。蝙蝠葛以往主产于我国东北地区,为了扩大药源,近年湖北咸宁地区对本地发现的少量野生蝙蝠葛进行了引种栽培,获得成功。为了考察咸宁栽培蝙蝠更多还原

【Abstract】 A new phenolic dauricine-type alkaloid together with the know dauricine, were iso-lated from the rhizoma of Menispermum DC cultivated in Xianning district, Hubei province.Dauricine was obtained as the major alkaloid and was confirmed by comparison with authentic sample.The new alkaloid is an unstable white powder. Based on spectrometric analysis (UV, IR, FAB--MSand ~1HNMR) and N-methylation which offered clauricine dimethiodide(Ⅴ), the structure was elucidat-ed as RR, N-desmethyldauricine(Ⅱ), which was isolated for the first time from nature.更多还原