【摘要】 从家种川贝瓦布种（ＦｒｉｔｉｌｌａｒｉａＷａｂｕｅｎｓｉｓＳ．Ｙ．ＴａｎｇｅｔＳ．Ｃ．Ｙｕｅｈ）鳞茎中分离出一生物碱，西贝素氮氧化合物，用ＤＥＰＴ技术以及^１Ｈ－^１ＨＣＯＳＹ、^１３Ｃ－^１ＨＣＯＳＹ，^１３Ｃ－^１ＨＣＯＬＯＣ、^１Ｈ－^１ＨＮＯＥＳＹ二维核磁共振技术对其化学结构及构型进行了研究，并全归属了该生物碱的^１Ｈ、^１３ＣＮＭＲ的化学位移。更多还原

【Abstract】 The chemical structure of a new C-nor-D-homosteroidal alkaloid,imperialine-N-Oxide,which isolated from the bulbs of Fritillaria Wabuensis S.Y.Tang et S.C. Yueh cultivated in Sichuan province,was invertigated by DEPT and 2D NMRtechniques including 1H-1H COSY,1H-1H NOESY and 13C-1H COLOC.The assignments of 1H and 13C NMR chemical shifts of the compound were given completely.更多还原