| CPC C07J 71/0031 (2013.01) | 25 Claims |
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1. A compound of the formula:
![]() wherein R is H or
![]() R1 is halogen, CN, C1-C3 alkyl, C3-C6 cycloalkyl, C1-C3 alkoxy, C2-C3 alkenyl, OCF3,
![]() R2 is halogen, C1-C3 alkyl, C1-C3 alkoxy, or C2-C3 alkenyl; and
X is O, OCH2, OCH2CH2, CH2O, SCH2, CH2S, CH2, NHCH2, CH2NH, N(CH3)CH2, CH2CH2, C≡C, or a bond, or a pharmaceutically acceptable salt thereof.
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