Three-Component One-Pot Total Syntheses of Glyantrypine, Fumiquinazoline F, and Fiscalin B Promoted by Microwave Irradiation
作者:Ji-Feng Liu、Ping Ye、Bailin Zhang、Grace Bi、Katie Sargent、Libing Yu、Daniel Yohannes、Carmen M. Baldino
DOI:10.1021/jo0508043
日期:2005.8.1
A microwave-promoted three-component one-pot reaction has been developed to provide access to the core pyrazino[2,1-b]quinazoline-3,6-dione (1) scaffold, which is common to several families of alkaloids with significant biological activities. By adapting this synthetic strategy through the use of selected Boc-amino acids and amino acid esters, we have accomplished highly efficient and concise total syntheses of glyantrypine (2), fumiquinazoline F (3), and fiscalin B (5), achieving overall yields of 55, 39, and 20%, respectively.