In yet another embodiment of this aspect, compounds of the present invention are described by Formula (I) and pharmaceutically acceptable salts thereof, wherein A is cyclohexenyl, X is a direct bond, R1 is heterocyclyl optionally substituted with 1-3 independent C1-4alkyl, NO2, COOH, or ???NH(C0-4alkyl)-aryl substituents, and the other variables are as defined above for Formula (I).