Identification of selective 8-(piperidin-4-yloxy)quinoline sulfone and sulfonamide histamine H1 receptor antagonists for use in allergic rhinitis
作者:Panayiotis A. Procopiou、Alison J. Ford、Paul M. Gore、Ashley P. Hancock、Simon T. Hodgson、Duncan S. Holmes、Brian E. Looker、Sadie Vile、Kenneth L. Clark、Ken A. Saunders、Robert J. Slack、Clarissa J. Watts
DOI:10.1016/j.bmcl.2017.09.020
日期:2017.11
A series of potent, selective and long-acting quinoline-based sulfonamide human H-1 histamine receptor antagonists, designed for once-daily intranasal administration for the treatment of rhinitis were developed. Sulfonamide 33b had a slightly lower affinity for the H-1 receptor than azelastine, had low oral bioavailability in the rat and dog, and was turned over to five major metabolites. Furthermore, 33b had longer duration of action than azelastine in guinea pigs, lower rat brain-penetration, and did not cause time dependent inhibition of CYP2D6 or CYP3A4. The clinical dose in humans is expected to be low (approximately 0.5 mg per day) based on the clinical dose used for azelastine and a comparison of efficacy data from animal models for 33b and azelastine. (C) 2017 Published by Elsevier Ltd.