Cyclic amidine analogs as inhibitors of nitric oxide synthase

Abstract

Disclosed herein are compounds of Formula I ##STR1## and pharmaceutically acceptable salts thereof which have been found useful in the treatment of nitric oxide synthase mediated diseases and disorders, including neurodegenerative disorders, disorders of gastrointestinal motility and inflammation. These disease and disorders include hypotension, septic shock, toxic shock syndrom, hemodialysis, IL-2 therapy such as in cancer patients, cachexia, immunosuppression such as in transplant therapy, autoimmune and/or inflammatory indications including sunburn or psoriasis and respiratory conditions such as bronchitis, asthma, and acure respiratory distress (ARDS), myocarditis, heart failure, atherosclerosis, arthritis, rheumatoid arthritis, chronic or inflammatory bowel disease, ulcerative colitis, Crohn's disease, systemic lupus erythematosis (SLE), ocular conditions such as ocular hypertension and uveitis, type 1 diabetes, insulin-dependent diabetes mellitus and cystic fibrosis. Compounds of Formula I are also usful in the treatment of hypoxia, hyperbaric oxygen convulsions and toxicity, dementia, Sydenham's chorea, Parkinson's disease, Huntington's disease, amyotrophic lateral sclerosis, mulitple sclerosis, Korsakoff's disease, imbecility related to cerebral vessel disorder, ischemic brain edema, sleeping disorders, schizophrenia, depression, PMS, anxiety, drug addiction, pain, migraine, immune complex disease, as immunosupressive agents and for preventing or reversing tolerance to opiates and diazepines.