Synthetic approaches to (1S,3R)-3-aminomethyl-2,2,3-trimethylcyclopentylmethanol and (1S,3R)-3-amino-2,2,3-trimethylcyclopentylmethanol from (+)-camphoric acid
作者:María I. Nieto、JoséM. Blanco、Olga Caamaño、Franco Fernández、Generosa Gómez
DOI:10.1016/s0040-4020(98)00416-5
日期:1998.7
The title aminomethyl (5) and amino (6) alcohols, which are of interest as intermediates in the synthesis of carbocyclic analogues of nucleosides, were prepared from (+)-camphoric acid via methyl (1S,3R)-3-carbamoyl-2,3,3-trimethylcyclopentane carboxylate (8). Direct reduction of 8 gave 5 in 26% yield. Amino alcohol 6 was prepared in 11–53% overall yields by several approaches, each involving oxidative
标题氨基甲基(5)和氨基(6)醇,作为合成核苷碳环类似物的中间体,是由(+)-樟脑酸经甲基(1 S,3 R)-3-氨基甲酰基制备的-2,3,3-三甲基环戊烷羧酸酯(8)。直接还原8可得到5,收率26%。氨基醇6通过几种方法以11–53%的总收率制备,每种方法都涉及8的氧化降解,然后进行还原步骤。