Disclosed herein are compounds of the formulawherein R1 is independently H or
alkyl of 1 to 6 carbons;R2 is optional and is defined as lower
alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted
alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons;n is an integer of between 0 and 2;o is an integer between 0 and 3;R3 is
hydrogen, lower alkyl of 1 to 6 carbons, F, Cl, Br or I;R4 is heteroaryl or (R5)p-heteroaryl where the heteroaryl group is 5-membered or 6-membered and has 1 to 3 heteroatoms selected from the group consisting of O, S, and N;p is an integer having the values of 0–5;R5 is F, Cl, Br, I, NO2, N(R8)2, N(R8)CORO8, N(R8)CON(R8)2, OH, OCOR8, OR8, CN, COOH, COOR8, C1-10 alkyl, fluoro substituted C1-10 alkyl, C2-10 alkenyl having 1 to 3 double bonds, C2-10 alkynyl having 1 to 3 triple bonds, or a (trialkyl)silyl or (trialkyl)silyloxy group where the alkyl groups independently have 1 to 6 carbons;A is (CH2)q where q is 0–5, C3-6 branched alkyl, C3-6 cycloalkyl, C2-6 alkenyl having 1 or 2 double bonds, or C2-6 alkynyl having 1 or 2 triple bonds;B is
hydrogen, COOH or a pharmaceutically acceptable salt thereof, COORO8, CONR9R10, CH2OH, CH2OR11, CH2OCOR11, CHO, CH(OR12)2, CHOR13O, COR7, CR7(OR12)2, CR7OR13O, or Si(C1-6alkyl)3;R7 is C1-5 alkyl, C3-5 cycloalkyl, or C2-5 alkenyl;R8 is C1-10 alkyl, C1-10 (
trimethylsilyl)alkyl, or C5-10 cycloalkyl;R9 and R10 are independently
hydrogen, C1-10 alkyl, C5-10 cycloalkyl, phenyl or R12-phenyl;R11 is C1-6 alkyl, phenyl, or R12-phenyl;R12 is C1-6 alkyl; andR13 is
divalent alkyl radical of 2–5 carbons.