Design, syntheses, and pharmacological characterization of 17-cyclopropylmethyl-3,14β-dihydroxy-4,5α-epoxy-6α-(isoquinoline-3′-carboxamido)morphinan analogues as opioid receptor ligands
摘要:
A series of 17-cyclopropylmethyl-3,14 beta-dihydroxy-4,5 alpha-epoxy-6 alpha-(isoquinoline-3 '-carboxamido)morphinan (NAQ) analogues were synthesized and pharmacologically characterized to study their structure-activity relationship at the mu opioid receptor (MOR). The competition binding assay showed two-atom spacer and aromatic side chain were optimal for MOR selectivity. Meanwhile, substitutions at the 1 '- and/or 4 '-position of the isoquinoline ring retained or improved MOR selectivity over the kappa opioid receptor while still possessing above 20-fold MOR selectivity over the delta opioid receptor. In contrast, substitutions at the 6 '- and/or 7 '-position of the isoquinoline ring reduced MOR selectivity as well as MOR efficacy. Among this series of ligands, compound 11 acted as an antagonist when challenged with morphine in warm-water tail immersion assay and produced less significant withdrawal symptoms compared to naltrexone in morphine-pelleted mice. Compound 11 also antagonized the intracellular Ca2+ increase induced by DAMGO. Molecular dynamics simulation studies of 11 in three opioid receptors indicated orientation of the 6 '-nitro group varied significantly in the different 'address' domains of the receptors and played a crucial role in the observed binding affinities and selectivity. Collectively, the current findings provide valuable insights for future development of NAQ-based MOR selective ligands. Published by Elsevier Ltd.
[EN] COMPOSITIONS FOR THE TREATMENT OF BRAIN TUMORS<br/>[FR] COMPOSITIONS DESTINÉES AU TRAITEMENT DE TUMEURS CÉRÉBRALES
申请人:INNOCRIN PHARMACEUTICALS INC
公开号:WO2019182743A1
公开(公告)日:2019-09-26
The instant invention describes pharmaceutical compositions and dosing regimens comprising seviteronel and/or dexamethasone, and methods of treating diseases, disorders symptoms thereof.
这项即时发明描述了包含赛维特龙和/或地塞米松的药物组合物和给药方案,以及治疗疾病、疾病症状的方法。
[EN] COMPOSITIONS FOR THE TREATMENT OF BRAIN TUMORS<br/>[FR] COMPOSITIONS POUR LE TRAITEMENT DE TUMEURS CÉRÉBRALES
申请人:INNOCRIN PHARMACEUTICALS INC
公开号:WO2020077197A1
公开(公告)日:2020-04-16
The instant invention describes pharmaceutical compositions and dosing regimens comprising radiation therapy and seviteronel with or without dexamethasone, and methods of treating diseases, disorders or symptoms thereof.
Nitrogen-containing heterocycle derivatives, pharmaceutical compositions, and methods of use thereof as antiviral agents
申请人:Mjalli M.M. Adnan
公开号:US20070219239A1
公开(公告)日:2007-09-20
The present application provides nitrogen-containing heterocycle derivatives that are antiviral compounds that may be useful in the treatment of a viral infection. Compounds of Formula (I) and pharmaceutical compositions comprising a compound of Formula (I) may be administered to a subject for antiviral therapy or prophylaxis.
Antibacterial activity is exhibited by 3-acylamino-2-oxoazetidines having in the 1-position an activating group of the formula ##STR1## wherein R is ##STR2## and R.sub.4 is ##STR3##
The instant invention describes compounds having metalloenzyme modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by such metalloenzymes.