Synthesis of (E)- and (Z)-29-methylidyne-2,3-oxidosqualene derivatives as inhibitors of liver and yeast oxidosqualene cyclase
作者:Maurizio Ceruti、Franca Viola、Gianni Balliano、Paola Milla、Giorgio Roma、Giancarlo Grossi、Flavio Rocco
DOI:10.1039/b200888m
日期:2002.6.7
derivatives is described starting from the C22 and C17 squalene aldehyde monobromohydrins. The conversion was achieved by means of a Wittig reaction, followed by desilylation of the terminal acetylene. For trisubstituted 1,3-enynes, preliminary alkylation with a suitable allyl bromide was performed. A new procedure for the synthesis of squalene aldehyde C27, C22 and C17 monobromohydrins is also described
从C 22和C 17角鲨烯醛单溴醇开始描述(E)-和(Z)-29-亚甲基二炔-2,3-氧化角鲨烯衍生物的合成。借助于维蒂希反应(Wittig reaction),然后对末端乙炔进行甲硅烷基化来实现该转化。对于三取代的1,3-烯炔,用合适的烯丙基溴进行初步烷基化。还描述了用于合成鲨烯醛C 27,C 22和C 17一溴代醇的新方法。一些新化合物可作为猪肝和酵母氧化角鲨烯环化酶的抑制剂,并且是动物酶的时间依赖性抑制剂。