作者:Frederick Cohen、Larry E. Overman、Sylvie K. Ly Sakata
DOI:10.1021/ol991269u
日期:1999.12.1
[formula: see text] The first enantioselective totalsynthesis of a batzelladine alkaloid is described. The central reaction in the synthesis of (-)-batzelladineD (2) is a tethered Biginelli condensation of a guanidine aldehyde and an acetoacetic ester to generate a 7-substituted-1-iminohexahydropyrrolo-[1,2-c]pyrimidine intermediate having the anti stereochemistry of the methine hydrogens flanking