Inhibition of N-type calcium channels by phenoxyaniline and sulfonamide analogues.

ABSTRACT: Building on previous investigations, structural modifications to the neuronal calcium ion channel blocker MONIRO-1 and related compounds were conducted that included replacement of the amide linker with an aniline and isosteric sulfonamide moiety, and the previously used strategy of substitution of the guanidinium group with less hydrophilic amine functionalities. A comprehensive SAR study revealed a number of phenoxyaniline and sulfonamide compounds that were more potent or had similar potency for the Ca_V2.2 and Ca_V3.2 channel compared to MONIRO-1 when evaluated in a FLIPR-based intracellular calcium response assay. Cytotoxicity investigations indicated that the sulfonamide analogues were well tolerated by Cos-7 cells at dosages required to inhibit both calcium ion c

SUBMITTER: Bispat AS 

PROVIDER: S-EPMC10953480 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature