Synthetic applications of 2-aryl-4-piperidones. X Synthesis of 3-aminopiperidines, potential substance P antagonists
作者:Anna Diez、Aline Voldoire、Isabel López、Mario Rubiralta、Víctor Segarra、Lluís Pagès、JoséM Palacios
DOI:10.1016/0040-4020(95)98710-y
日期:1995.4
A general method is described for the synthesis of 3-aminopiperidines from 4-piperidones based on a KOEt treatment of the tosylate of the corresponding oximes (Neber rearrangement). The procedure is applied to the synthesis of N-benzyl-3-amino-4,4-diethoxypiperidine (13), (R)-N-(2-hydroxy-1-phenyl)ethyl analogues 18, and 2-phenyl derivatives 27–28. The methoxybenzylation of the primary amino group
描述了基于对相应的肟的甲苯磺酸酯的甲苯磺酰脲(KOBER)处理从4-哌啶酮合成3-氨基哌啶的一般方法(Neber重排)。该方法适用于合成N-苄基-3-氨基-4,4-二乙氧基哌啶(13),(R)-N-(2-羟基-1-苯基)乙基类似物18和2-苯基衍生物27 –28。这些氨基哌啶的伯氨基的甲氧基苄基化作用导致一系列潜在的P物质拮抗剂。