Synthesis of the 2β,3α- and 2β,3β-isomers of 3-(p-substituted phenyl)tropane-2-carboxylic acid methyl esters
摘要:
The synthesis of 3-(p-substituted phenyl)trop-2-ene-2-carboxylic acid methyl ester 8 and its reduction with samarium iodide provide a new synthesis of 3 beta-(4'-substituted phenyl)tropane-2 beta-carboxylic acid methyl ester (2) and, in addition, give the first synthesis of the 2 beta,3 alpha-diastereoisomer 4.