prov:value
| - OR11, C(O)CO NR1 R2, --(CH2)q --NR1 R2 where q is 0 to 5, --CH???NOR2,2(4,5-dihydro)oxazolyl, or COR10 where R10 is H, R1, NR1 R2 or CF3 ; R4 is hydrogen, C1 -C3 alkyl, CN, CONR1 R2, or ???O; R5 is hydrogen or C1 -C3 alkyl; X is a valence bond or CH2 provided that when X is CH2, at least one of R3 and R4 is other than hydrogen or C1 -C3 alkyl; and Z is a hydrogen or halogen. 2.
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