| abstract |
This invention provides a compound having the formula <IMAGE> 1 wherein: X is phenyl which is optionally substituted; R and R1 are each, independently, hydrogen, halogen, alkyl, alkoxy, hydroxy, or trifluoromethyl; R2 is hydrogen, alkyl, alkoxy, hydroxy, trifluoromethyl; Y is a radical selected from the group consisting of <IMAGE> <IMAGE> carboxy, carboalkoxy, phenyl, or carboalkyl; n=2-4; or a pharmaceutically acceptable salt thereof, with the proviso that each R3 of Y may be the same or different which are useful as antineoplastic agents. |