中国南海侧扁软柳珊瑚中孕甾烷类化学成分的研究

来源 :天然产物研究与开发 | 被引量 : 0次 | 上传用户:heishenggg
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
从南海侧扁软柳珊瑚Subergorgia suberosa的二氯甲烷-甲醇提取物中首次分离鉴定了8个孕甾烷类化合物,经波谱鉴定为3β-O-palmitoyl-pregn-5-ene-20-one-3-ol (1),3β-O-palmitoyl-5α-pregn-20-one-3-ol (2),5α-pregn-1-ene-3,20-dione (3),3β,5α-pregn-20-one-3-ol (4),3β-pregn-5-ene-20-one-3-ol (5),3β,5β-pregn-20-one-3-ol (6),5β-pregn-3,20-dione (7),pregn-4-ene-3,20-dione (8).其中化合物1,2为新化合物.
其他文献
In this paper,a new fixed point theorem is established in noncompact hyperconvex metric spaces.As applications,a continuous selection and its fixed point theore
以注塑系统集成项目为背景,说明细节确认检查表在项目的WBS中的辅助作用。 In the context of the injection molding system integration project, the details confirm th
目的研究中国人群OX40配体蛋白基因(TNFSF4)单核苷酸多态性与冠心病的关系。方法从北京同仁医院和北京朝阳医院选取冠心病患者369例和匹配的对照组360例。并记录所有研究对象
In this paper,we establish suflicient conditions for existence and control lability of nonlinear neutral evolution integrodifferential systems in Banach spaces.
Let Γ be a C∞ curve in Rn and μ be the measure induced by Lebesgue measure on Γ,multiplied by a smooth cut-off function.In this paper,we will prove some mix
In this paper,we discuss FI-extending property of rings and modules.The main results axe the following:a characterization of von Neumann regular rings which are
文章首先概述了智能协同系统在美国航空航天局(NASA)的应用情况,并以NASA普遍使用的两个典型软件工具PMT和NX为例,阐述了智能协同系统的基本功能和技术实现方法,为国内的智能
In this paper we give an asymptotic expansion including error terms for the number of cycles in homology classes for connected graphs.Mainly,we obtain formulae
目的:分析CT扫描、食管造影和内窥镜测量食管癌病变长度的差异及其一致程度.方法:应用CT扫描、食管造影和内窥镜等不同检查手段测量74例食管癌病变长度,以食管癌病理标本根据
对采自中国石油大学胜华炼油厂的催化裂化主精馏塔的催化裂化(FCC)粗汽油进行了实沸点切割,采用气相色谱-脉冲式火焰发光检测器(GC-PFPD)联用技术和外标法定量测定了各窄馏分