Two Novel Sub-skeleton Types of ent-Kauranoids from Isodon gesneroides  

作　　者：ShaoNongCHEN ShaoYuanCHEN HanDongSUN WenZhongLIN YaoZuCHEN 

机构地区：[1]ShanghaiInstituteofMateriaMedica,AcademiaSinica,Shanghai200031 [2]CollegeofLifeScience,ZhejiangUniversity,Hangzhou310029 [3]LaboratoryofPhytochemistry,KunmingInstituteofBotany~AcademiaSinica,Kunming650204 [4]LaboratoryofPhytochemistry,KunmingInstituteofBotany,AcademiaSinica,Kunming650204 [5]DepartmentofChemistry,ZhejiangUniversity,Hangzhou310027

出　　处：《Chinese Chemical Letters》2004年第5期539-542,共4页中国化学快报（英文版）

摘　　要：Two novel ent-kauranoids with new sub-skeleton types, gesneroidins G and H were isolated as white powder from the ether extract of the leaves of Isodon gesneroides through normal phase column chromatography. Their structures were elucidated as 3b,6a,7b-triacetoxyl-15-hydroxyl-14-oxo-ent-15,16-seco-kaur-11,17-olide and 1a-hydroxyl-3b,6a,7b,11b-tetraacetoxyl-ent-nor-15,17-kaur-8,16-olide on the basis of the spectral evidences including 1D and 2D NMR spectra.

关 键 词：Isodon gesneroides LABIATAE gesneroidin G gesneroidin H ent-kaurane diterpenoid. 

分 类 号：TQ231.3[化学工程—有机化工]