作者:Timothy N. Birkinshaw、Andrew B. Holmes
DOI:10.1016/s0040-4039(01)80997-7
日期:1987.1
The total synthesis of the piperidine alkaloid isoprosopinine A (1) and an improved synthesis of isoprosopinine B (2) are reported. The key steps were alkylation of the anions of the sulphones (5) and (6) respectively with the common intermediate bromide (4) and the novel reductive cleavage of the sulphonamides (7) and (8) with sodium-amalgam.
据报道,哌啶生物碱异脯氨酸A(1)的总合成和异脯氨酸B(2)的合成得到改善。关键步骤是分别用常见的中间体溴化物(4)对砜(5)和(6)的阴离子进行烷基化,以及用钠汞齐对磺酰胺(7)和(8)进行新的还原裂解。