Schering Corporation

Wei Tong

Andrew William Stamford

Craig D Boyle

James E Patrick

Kevin B Alton

Anima Ghosal

Swapan K Chowdhury

Shmuel Zbaida

Mark A Wirth

The present invention is directed to a metabolite of a xanthine Phosphodiesterase type 5 inhibitor having the following structure derivatives, and formulations thereof, and processes for preparing the same. Further disclosed are methods of treating a physiological disorder, symptom or disease in a patient, comprising administering to the patient an effective amount of the above compound, wherein the physiological disorder, symptom or disease is a urogenital, cardiovascular, cerebrovascular or peripheral vascular disorder, angina pectoris, hypertension, restenosis post angioplasty, endarterectomy, stent introduction, cerebral stroke, a respiratory tract disorder such as an allergic condition associated with atopy, pulmonary hypertension, an ischemic heart disorder, impaired glucose tolerance, diabetes and its related complication, insulin resistance syndrome, hyperglycemia, polycystic ovarian syndrome, a glomerular disorder, renal insufficiency, nephritis, a tubular interstitial disorder, an autoimmune disorder, glaucoma, intestinal motility, cachexia or cancer.

Metabolite of xanthine Phosphodiesterase 5 inhibitor and derivatives thereof useful for treatment of erectile dysfunction

Growing community of inventors

New City, NY, United States of America

Wei Tong