作者:Kevin E. Henegar、Ted A. Baughman
DOI:10.1002/jhet.5570400407
日期:2003.7
Mappicine and mappicine ketone are camptothecin analogs of interest as antiviral agents. A novel synthesis of these compounds is described using a Friedlander condensation. The requisite ketone is prepared via a regioselective ortho-directed metallation/alkylation of a trisubstituted pyridine. This is condensed with N-t-butyloxycarbonyl-o-aminobenzaldehyde as a convenient, stable o-aminobenzaldehyde
Mappicine和Mappicine酮是喜树碱类似物的抗病毒剂。使用Friedlander缩合描述了这些化合物的新合成方法。必要的酮是通过三取代吡啶的区域选择性邻位定向金属化/烷基化制备的。将其与Nt-丁氧基羰基-邻氨基苯甲醛缩合,作为弗里德兰德缩合反应中方便,稳定的邻氨基苯甲醛当量。