Patent ID: 6562848
Filing Date: 2003-05-13
Classification: A61K,C07K

Abstract:
A compound of formula I: or a pharmaceutically acceptable salt form thereof, wherein:R1 is selected from R4 and â€”Oâ€”R4; R2 and R3 are selected from H and NH2, or alternatively, R2 and R3 together form â€”OCH2Oâ€” or â€”CH2CH2Oâ€”; and R4 is selected from methyl, ethyl, propyl, isopropyl, butyl, i-butyl, t-butyl, phenyl, benzyl, cyclopentyl, 2-aminophenyl, 3-aminophenyl, 4-aminophenyl, 2-pyridyl, 3-pyridyl, and 4-pyridyl.