Cyclohexylphenyl carboxamides tocolytic oxytocin receptor antagonists

The present invention provides novel tricyclic benzodiazepine carboxamides compounds and methods and pharmaceutical compositions utilizing them for the treatment and/or prevention and/or suppression of disorders which may be remedied or alleviated by oxytocin antagonist activity, including prevention and/or suppression suppression of preterm labor, suppression of labor at term prior to caesarean delivery, and for the treatment of dysmenorrhea. These compounds are also useful in enhancing fertility rates, enhancing survival rates and synchronizing estrus in farm animals; and may be useful in the prevention and treatment of disfunctions of the oxytocin system in the central nervous system including obsessive compulsive disorder (OCD) and neuropsychiatric disorders.