Neuropathic pain-alleviating effects of pyrazole-conjugated arylsulfonamides as 5-HT6 receptor antagonists
摘要:
A novel series of arylsulfonylaminomethyl-3-(1-phenyl-5-isopropyl)pyrazoles was evaluated for serotonin receptor subtype 6 (5-HT6R) antagonistic effects in vitro. We also investigated their neuropathic pain-alleviating effects in vivo using a rat spinal nerve ligation (SNL) model. Bicyclic aromatic sulfonamino groups, such as naphthalene and quinolin-substituted derivatives, showed good 5-HT6 inhibitory activity in vitro. Among them, selected compounds, 12 and 13, having 8-quinoylsulfonamino groups, showed potent neuropathic pain-alleviating effects in the rat model. (C) 2017 Elsevier Ltd. All rights reserved.
Synthesis and T-type calcium channel-blocking effects of aryl(1,5-disubstituted-pyrazol-3-yl)methyl sulfonamides for neuropathic pain treatment
作者:Jung Hyun Kim、Gyochang Keum、Hesson Chung、Ghilsoo Nam
DOI:10.1016/j.ejmech.2016.07.032
日期:2016.11
A novel series of aryl(1,5-disubstituted pyrazol-3-yl)methyl sulfonamide derivatives was designed, synthesized, and evaluated for T-type calcium channel (ctiG and chm) inhibitory activity. We identified several compounds, 9a, 9b, 9g, and 9h that displayed good T-type channel inhibitory potency with low hERG channel and CYP450 inhibition. Among them, 9a and 9b exhibited neuropathic pain alleviation effects in mechanical and cold allodynia induced in the SNL rat model. Compounds 9a and 9b displayed better efficacy than mibefradil and gabapentin against cold allodynia. In particular, compound 9a seemed to be valuable as shown fast acting performance in mechanical neuropathic pain model. (C) 2016 Elsevier Masson SAS. All rights reserved'.
Neuropathic pain-alleviating effects of pyrazole-conjugated arylsulfonamides as 5-HT6 receptor antagonists
作者:Jin Ri Hong、Hyunah Choo、Ghilsoo Nam
DOI:10.1016/j.bmcl.2017.07.031
日期:2017.9
A novel series of arylsulfonylaminomethyl-3-(1-phenyl-5-isopropyl)pyrazoles was evaluated for serotonin receptor subtype 6 (5-HT6R) antagonistic effects in vitro. We also investigated their neuropathic pain-alleviating effects in vivo using a rat spinal nerve ligation (SNL) model. Bicyclic aromatic sulfonamino groups, such as naphthalene and quinolin-substituted derivatives, showed good 5-HT6 inhibitory activity in vitro. Among them, selected compounds, 12 and 13, having 8-quinoylsulfonamino groups, showed potent neuropathic pain-alleviating effects in the rat model. (C) 2017 Elsevier Ltd. All rights reserved.
Convenient and Environment-Friendly Synthesis of Sulfonyl Chlorides from S-Alkylisothiourea Salts via N-Chlorosuccinimide Chlorosulfonation
作者:Jiaxi Xu、Zhanhui Yang
DOI:10.1055/s-0033-1338743
日期:——
the byproduct succinimide from ‘waste water’ can be conveniently converted into the starting reagent N-chlorosuccinimide with sodium hypochlorite (bleach) to make the method sustainable. A convenient, practical, and environmentally friendly method for the synthesis of sulfonyl chlorides has been developed. Structurally diverse sulfonyl chlorides were synthesized in moderate to excellent yields from