Asymmetric syntheses of (−)-isoretronecanol and (−)-trachelantamidine
作者:Marta Brambilla、Stephen G. Davies、Ai M. Fletcher、Paul M. Roberts、James E. Thomson
DOI:10.1016/j.tet.2013.11.094
日期:2014.1
total asymmetric syntheses of (−)-isoretronecanol and (−)-trachelantamidine are reported. Oxidative cleavage of tert-butyl (S,S,S,Z)-7-[N-benzyl-N-(α-methylbenzyl)amino]cyclohept-3-ene-1-carboxylate, followed by hydrogenolysis promoted in situ cyclisation/reduction, which provided rapid access to the bicyclic core within (−)-isoretronecanol. Analogous treatment of the C(1)-epimer gave (−)-trachelantamidine