Synthesis of (1R,3R)-3-[2-(Aminoethyl)-2,2-dimethylcyclobutyl]methanol and (1S,3R)-(3-Amino-2,2-dimethylcyclobutyl)methanol from (+)-Nopinone
作者:M. José Figueira、J. Manuel Blanco、Olga Caamaño、Franco Fernández、Xerardo García-Mera、Carmen López
DOI:10.1055/s-2000-7112
日期:——
6 and 7, which are of interest as intermediates in the synthesis of carbocyclic analogs of nucleosides, were synthesized from (+)-nopinone (8). Ring opening of α-isonitrosonopinone leads to a cyanoester which can be directly reduced to 6. Alternatively, a longer route from the lactam 12, one of the Beckmannrearrangement products of 8, leads also to 6, in a higher overall yield. Besides this the isomeric