Asymmetric synthesis of cyclopentylamine derivatives, intermediates for carbocyclic nucleoside synthesis. Carbocyclization of 2-amino-5-hexenyl radicals
摘要:
The carbocyclization of 2-amino-5-hexenyl radicals leading to aminocyclopentane derivatives is described for the first time. The tributyltin hydride + AIBN mediated free radical cyclization of the chiral recursors 17-19 and 24 gives compounds 25, 27 and 28, respectively, in good yield.