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目的 研究独子藤Celastrus monospermus根皮醋酸乙酯部位的化学成分.方法 采用硅胶、反相硅胶和凝胶等柱色谱方法进行分离纯化,通......
目的:采用在原核表达系统表达的人白细胞介素31(IL-31)蛋白免疫新西兰兔,制备兔抗人IL-31多克隆抗体.方法:利用IPTG诱导人IL-31在......
目的：对苦葛蔓（ＰｕｅｒａｒｉａｐｅｄｕｎｃｕｌａｒｉｓＧｒａｈ．）酸水解产物中的化学成分进行分离和结构鉴定。方法：用各种色谱技术进行分离，得到３个五环三萜化合物，用ＭＳ，１ＨＮＭＲ，１３ＣＮＭＲ（ＤＥＰＴ），ＨＭＱＣ，ＨＭＢＣ和ＮＯＥＳＹ谱鉴定化合物。结......
Three new triterpenes, 3β,21α-dihydroxylupen-18(19)-en (1), 3β,25-dihydroxytirucalla7,23(24)-dien (2), and 21α-hydro......
Two new lanosta triterpenoids, 3β,22α-dihydroxy-lanosta-8,24E-diene-25-peroxide, 3,22α,25-trihydroxy lanosta-8,24E-di......
Two new sterols, 3β,7α,16β-trihydroxy-stigmast-5,22-diene 1, 3β,7α,16β-trihydroxy-stigmast-5-ene 2, were isolated ......
A new triterpene and a saponin, named 2α,3β,23-trihydroxyurs-20-en-28-oic acid (1) and 2α,3β,23-trihydroxyurs-20-en-......
