Sommelet-hauser rearrangement of an ammonium ylide derived from the HIV-1 reverse transcriptase inhibitor nevirapine
作者:Janice M. Klunder
DOI:10.1002/jhet.5570320604
日期:1995.11
Treatment of N-cyanomethylpyrrolidinium salt 4 with potassium tert-butoxide in a mixture of dimethylsulfoxide and tetrahydrofuran at −10°, followed by acid hydrolysis, afforded a mixture of compounds 5 and 6 in a ratio of 1:1.8. Upon treatment of 4 with sodium amide in liquid ammonia, 5 and 6 were obtained in a ratio of 1.5:1 and a combined yield of 83%. Compound 5 is the desired product resulting from
在二吡啶二氮杂吡啶酮nevirapine(1)的3位功能已通过Sommelet-Hauser重排1的叶立德完成。在-10°下用二甲基亚砜和四氢呋喃的混合物中的叔丁醇钾处理N-氰基甲基吡咯烷鎓盐4,然后酸水解,得到比例为1:1.8的化合物5和6的混合物。用酰胺钠在液氨中处理4,得到的5和6的比例为1.5∶1,总产率为83%。化合物5是从Sommelet-豪瑟所得的所需产物重排4,而6个导出来自竞争史蒂文斯重排和在水解时所产生的醛的分子内环化。Baeyer-Villiger氧化5可得到3-羟基衍生物2,这是最近确定的奈韦拉平代谢产物。