New duocarmycin SA derivatives have been synthesized and evaluated for
in vitro anticellular activity against HeLa S-3 cells, and in vivo an
titumor activity against murine sarcoma 180 in mice. The results sugge
sted that the N,N-dialkylcarbamoyl derivatives bearing the p-methoxy c
innamoyl group, which was prepared from duocarmycin SA, showed good in
vivo antitumor activities superior to native duocarmycin SA. (C) 1997
Elsevier Science Ltd.