Two Novel Epimeric Eremophilane Sesquiterpenes from the Flower of Cacalia tangutica  

作　　者：XiaLIU YanPingSHI 

机构地区：[1]KeyLaboratoryforNaturalMedicineofGansuProvince,LanzhouInstituteofChemicalPhysics,ChineseAcademyofSciences,Lanzhou730000

出　　处：《Chinese Chemical Letters》2005年第6期774-776,共3页中国化学快报（英文版）

基　　金：supported by Foundation of“Bairen Jihua”of CAS in 2000;NNSFC(No.20372029 and 20475057).

摘　　要：Two novel epimeric eremophilane sesquiterpenes, 7β-H-3α-angeloyl-9(10)-ene-11, 12-epoxy-8-oxoeremophilane (1) and 7β-H-3α-angeloyl-9(10)-ene-11, 12-epoxy-8-oxoeremophi- lane (2) were isolated from the methanol extract of the flower of Cacalia tangutica (Franch.) Hand-Mazz. Their structures were characterized by 1D-, 2D-NMR (1H-1H COSY, HMQC, HMBC, 1H-1H NOESY) and HRESI-MS techniques.

关 键 词：Cacalia tangutica COMPOSITAE eremophilane sesquiterpene. 

分 类 号：Q946[生物学—植物学]