Enantioselective Total Synthesis of Batzelladine F: Structural Revision and Stereochemical Definition
作者:Frederick Cohen、Larry E. Overman
DOI:10.1021/ja017067m
日期:2001.10.31
enantioselective total synthesis of the correct structure 1 of batzelladine F. Our synthesis strategy is outlined in Scheme 1.7 We envisaged the right-hand tricyclicguanidine as evolving from pentacyclic bisguanidine 2. This intermediate would be the product of a highly convergent tethered Biginelli condensation8 between â-keto ester 3 and guanidine hemi-aminal 4; a synthesis of an analogue of 4 bearing