N- (5S, 6S, 9R) -5- amino-6- (2,3-difluorophenyl) -6,7,8,9-tetrahydro -5H- cyclohepta b pyridine-9-yl-4- ( 2-oxo-2,3-dihydro -1H- imidazo 4,5-b pyridin-1-yl) piperidine-1-carboxylate salt

摘要

Disclosed is the hemisulfate of compound (I) and the crystalline form of the hemisulfate. Also disclosed are methods of using a hemisulfate of compound (I) as a CGRP receptor antagonist and a pharmaceutical composition comprising the hemisulfate of compound (I). Compound (I) hemisulfate is a migraine and other headache, neurogenic vasodilation, neurogenic inflammation, burns, circulatory shock, flushing associated with menopause, airway inflammatory diseases such as asthma, and chronic obstructive Useful for treating, preventing, or alleviating disorders including pulmonary disease (COPD).