| abstract |
A compound, compositions, methods of use, and processes of making formula (I) or a pharmaceutically acceptable salt, hydrate, ester, solvate, prodrug, metabolite, stereoisomer, or mixtures thereof, wherein: R1, when present, is hydrogen or lower alkyl; R2 is a lower alkyl, aryl, aralkyl, lower alkanoyl, or -(CH¿2?)n-(CHOH)y(CH2)mA, wherein n is 1-4, y is 0 or 1, m is 0-5, and A is cycloalkyl, cycloalkenyl, lower alkanoyl, aryl, aralkyl, -NH2, -NH-(lower alkyl), (a), (b), (c), or (d); Y represents the atoms necessary to form a fused 5- to 6-membered ring that is aromatic or nonaromatic and carbocyclic or heterocyclic; Z is (i) -CHR?2CHR3¿- where R?2 and R3¿ are independently hydrogen, alkyl, aryl or aralkyl; (ii) -R6C=CR3- where R?6 and R3¿ are independently hydrogen, lower alkyl, aryl, aralkyl chlorine, bromine or -NR7R8, where R?7 and R8¿ are independently hydrogen or lower alkyl, or, R?6 and R3¿, taken together, form a fused 5- to 6-membered ring that is aromatic or nonaromatic and carbocyclic or heterocyclic; (iii) -R2C=N-; (iv) -CR?2(OH)-NR7¿-; or (v) -C(O)-NR7-. |