Disclosed is an anti-cancer compound represented by Structural Formula (I):
##STR1##
The variables in Structural Formula (I) are described hereinbelow. Also disclosed
is a pharmaceutical composition comprising a pharmaceutically acceptable carrier
or diluent and a compound represented by Structural Formula (I) (preferably an
effective amount). Also disclosed is a method of treating a subject with cancer
by administering to the subject an effective amount of a compound represented by
Structural Formula (I).