The acid lability of electron-rich N-benzylanilines has been exploited in a linker for the traceless solid-phase synthesis of benzimidazoles, 2-aminobenzimidazoles, quinoxalinones and tetrahydroquinoxalines. The target compound precursors were assembled on a solid-phase support derivatized with either a benzylamine or a benzhydrylamine linker. Exposure to an acidic reagent caused cleavage of the C(benzyl)-N(aniline) bond, releasing the product with only a hydrogen atom on the descending nitrogen. The Encore technique for directed sorting on SynPhase Lanterns has been developed and applied to combinatorial synthesis of generic drug discovery libraries.
电子富集的N-
苯基
苯胺的酸敏感性已被利用在无痕固相合成
苯并咪唑,
2-氨基苯并咪唑,
喹啉酮和
四氢喹啉的连接剂中。目标化合物的前体在固相支持物上组装,该支持物经过
苯基胺或
苯基
亚胺连接剂衍生化。暴露于酸性试剂会导致C(
苯基)-N(
苯胺)键的断裂,释放仅带有一个
氢原子的产物。Encore技术用于在SynPhase Lanterns上的定向分选已被开发并应用于通用药物发现库的组合合成。