Cyloadditions of benzopyrones: Rapid access to bicyclic AB-ring analogues of anthracyclines
作者:Michael E. Jung、Richard W. Brown、Jeffrey A. Hagenah、Charles E. Strouse
DOI:10.1016/0040-4039(84)80098-2
日期:1984.1
Cycloaddition of the benzopyrone 10b with 1,1-disubstituted alkenes 12, 14, and 16 produces fair yields of the lactones 13, 15, and 17, AB-ringanalogues of the anthracyclines.