| CPC C07F 5/027 (2013.01) [A61P 13/12 (2018.01)] | 20 Claims |
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1. A compound of formula I:
![]() wherein
X is selected from O, NR3, and S;
R1 is selected from O and phenyl optionally substituted with one or more substituents selected from C1-C6 alkyl, C1-C6 alkoxy, C1-C6 fluoroalkyl, and halogen;
R2 is selected from halogen, hydrogen, C1-C6 alkyl, C1-C3 alkoxy, C1-C3 fluoroalkyl, and phenyl;
R3 is selected from hydrogen and C1-C6 alkyl;
Ar is selected from phenyl, a 5-membered heteroaryl, and a 6-membered heteroaryl, wherein said phenyl, 5-membered heteroaryl, or 6-membered heteroaryl is optionally substituted with amino, cyano, halogen, hydroxy, —C(O)NH2, —C(═O)OR4, C1-C6 alkyl, C1-C6 haloalkyl, C1-C6 alkoxy, or C1-C6 haloalkoxy;
R4 is selected from hydrogen and C1-C6 alkyl; and
indicates a single bond or a double bond. |