Design, Synthesis, and Preclinical Characterization of Selective Factor D Inhibitors Targeting the Alternative Complement Pathway

Autor: Anna Vulpetti, Upendra A. Argikar, Stefanie Flohr, Aengus Mac Sweeney, Melissa Prentiss, Edwige Lorthiois, Karen Anderson, David B. Belanger, Sha-Mei Liao, Nan Ji, Christopher M. Adams, Frederic Cumin, Andrea De Erkenez, Nathalie Gradoux, Muneto Mogi, Donglei Liu, Maura Crowley, Keith Jendza, Debby Long, Nello Mainolfi, Catherine Solovay, Ann Brown, Laura R. La Bonte, Rajeshri Ganesh Karki, Omar Delgado, Powers James J, Bruce D Jaffee, Christine F. Gelin
Rok vydání: 2019
Předmět:
Zdroj: Journal of medicinal chemistry. 62(9)
ISSN: 1520-4804
Popis: Complement factor D (FD), a highly specific S1 serine protease, plays a central role in the amplification of the alternative complement pathway (AP) of the innate immune system. Dysregulation of AP activity predisposes individuals to diverse disorders such as age-related macular degeneration, atypical hemolytic uremic syndrome, membranoproliferative glomerulonephritis type II, and paroxysmal nocturnal hemoglobinuria. Previously, we have reported the screening efforts and identification of reversible benzylamine-based FD inhibitors (1 and 2) binding to the open active conformation of FD. In continuation of our drug discovery program, we designed compounds applying structure-based approaches to improve interactions with FD and gain selectivity against S1 serine proteases. We report herein the design, synthesis, and medicinal chemistry optimization of the benzylamine series culminating in the discovery of 12, an orally bioavailable and selective FD inhibitor. 12 demonstrated systemic suppression of AP activation in a lipopolysaccharide-induced AP activation model as well as local ocular suppression in intravitreal injection-induced AP activation model in mice expressing human FD.
Databáze: OpenAIRE