Azepino-indazoles as calcitonin gene-related peptide (CGRP) receptor antagonists.

Article Details

Citation

Copy to clipboard

Mercer SE, Chaturvedula PV, Conway CM, Cook DA, Davis CD, Pin SS, Macci R, Schartman R, Signor LJ, Widmann KA, Whiterock VJ, Chen P, Xu C, Herbst JJ, Kostich WA, Thalody G, Macor JE, Dubowchik GM

Azepino-indazoles as calcitonin gene-related peptide (CGRP) receptor antagonists.

Bioorg Med Chem Lett. 2021 Jan 1;31:127624. doi: 10.1016/j.bmcl.2020.127624. Epub 2020 Oct 21.

PubMed ID

33096162 [ View in PubMed

]

Abstract

Calcitonin gene-related peptide (CGRP) receptor antagonists have been shown clinically to be effective treatments for migraine. Zavegepant (BHV-3500, BMS-742413) is a high affinity antagonist of the CGRP receptor (hCGRP Ki = 0.023 nM) that has demonstrated efficacy in the acute treatment of migraine with intranasal delivery in a Phase 2/3 trial, despite showing low oral bioavailability in rats (FPO = 1.7%). Using zavegepant as a template, we sought to improve oral bioavailability through a series of azepinones which were designed in an attempt to reduce the number of rotatable bonds. These efforts led to the discovery of compound 21 which was able to mostly maintain high affinity binding (hCGRP Ki = 0.100 nM) and in vivo efficacy in the marmoset facial blood flow assay, while greatly improving oral bioavailability (rat FPO = 17%).

DrugBank Data that Cites this Article

Drug Targets

Drug	Target	Kind	Organism	Pharmacological Action	Actions
Zavegepant	Calcitonin gene-related peptide type 1 receptor	Protein	Humans	Yes	Antagonist	Details