Synthesis of Cryptophycins via an <i>N</i>-Acyl-β-lactam Macrolactonization
作者:Ramdas Vidya、MariJean Eggen、Sajiv K. Nair、Gunda I. Georg、Richard H. Himes
DOI:10.1021/jo0302197
日期:2003.12.1
to the synthesis of the macrolide core of the cryptophycins has been developed. A novel macrolactonization utilizing a reactive acyl-beta-lactam intermediate incorporates the beta-amino acid moiety within the 16-membered macrolide core. This modular approach, involving a cyanide-initiated acyl-beta-lactam ring opening followed by cyclization, was successfully applied to the total synthesis of cryptophycin-24