Patent ID: 6482805
Filing Date: 2002-11-19
Classification: A61K,C07H

Abstract:
A compound of the following formula: where: R1 is N3, NH2, NHâ€”CH3, NHâ€”COCH3, NHâ€”Ph, NHâ€”COPh, or NHâ€”CH2â€”Ph; R2 is halogen; R3 is C1 to C3 alkoxy; R4, R5, and R6 are the same or different and are selected from hydrogen, alkyl, aryl, alkoxy, halo, haloalkyl, arylalkyl, aralkoxy, haloalkoxy, nitro, cyano, and animo; and Râ€³ is an amino acid residue; or a pharmaceutically acceptable salt or ester thereof.