【摘要】 从绵马贯众 (Dryopteriscrassirhizoma)中分离得到绵马贯众素 ,应用 1DNMR和 2DNMR( 1 H 1 HCOSY ,HMQC ,HMBC)技术 ,尤其是HMBC谱确证了绵马贯众素的结构 ,并对其1 3C化学位移进行了明确的归属更多还原

【Abstract】 Dryocrassine was isolated from the Dryopteris crassirhizoma. 1D and 2D NMR （¹H-¹H COSY, HMQC, HMBC） methods, among which the HMBC method was the most important, were used to elucidate the structure of Dryocrassine. The (¹³C chemical) shifts of the compound were assigned.更多还原