| abstract |
The invention provides a compound of formula: n n n n n n n n n n and methods for making and using the same, where R 1 and R 2 are independently hydrogen, C 1-6 alkyl or C 1-6 haloalkyl; R 3 is hydrogen, halogen, C 1-6 alkyl or C 1-6 alkoxy; R 4 is hydrogen or halogen; and R 5 is a mono- or di-amino acid moiety, a succinic acid moiety, a urea moiety, or a derivative thereof. The invention also provides pharmaceutical compositions comprising a compound of formula I, and methods for making and using the same. |