Rational design, synthesis, and reactivity of lactendiynes, a new class of cyclic enediynes ortho-fused with the β-lactam ring
作者:Luca Banfi、Andrea Basso、Giuseppe Guanti
DOI:10.1016/s0040-4020(97)00036-7
日期:1997.3
A series of 10-membered cyclic enediynes trans-fused with N-protected and N-unprotected β-lactams have been stereoselectively prepared. These compounds were found to be stable toward Bergman cycloaromatization, which, on the other hand, takes place readily when the azetidinone ring is opened.