A novel GABAA alpha 5 receptor inhibitor with therapeutic potential
摘要:
Novel 2,3-benzodiazepine and related isoquinoline derivatives, substituted at position 1 with a 2-benzothiophenyl moiety, were synthesized to produce compounds that potently inhibited the action of GABA on heterologously expressed GABA(A) receptors containing the alpha 5 subunit (GABA(A) alpha(5)), with no apparent affinity for the benzodiazepine site. Substitutions of the benzothiophene moiety at position 4 led to compounds with drug-like properties that were putative inhibitors of extra-synaptic GABA(A) alpha(5) receptors and had substantial blood-brain barrier permeability. Initial characterization in vivo showed that 8-methyl-5-[4-(trifluoromethyl)-1-benzothiophen-2-yl]-1,9-dihydro-2H-[1,3]oxazolo[4,5-h][2,3] benzodiazepin-2-one was devoid of sedative, pro-convulsive or motor side-effects, and enhanced the performance of rats in the object recognition test. In summary, we have discovered a first-in-class GABA-site inhibitor of extra-synaptic GABA(A) alpha(5) receptors that has promising drug-like properties and warrants further development. (C) 2015 Elsevier B.V. All rights reserved
A novel GABAA alpha 5 receptor inhibitor with therapeutic potential
摘要:
Novel 2,3-benzodiazepine and related isoquinoline derivatives, substituted at position 1 with a 2-benzothiophenyl moiety, were synthesized to produce compounds that potently inhibited the action of GABA on heterologously expressed GABA(A) receptors containing the alpha 5 subunit (GABA(A) alpha(5)), with no apparent affinity for the benzodiazepine site. Substitutions of the benzothiophene moiety at position 4 led to compounds with drug-like properties that were putative inhibitors of extra-synaptic GABA(A) alpha(5) receptors and had substantial blood-brain barrier permeability. Initial characterization in vivo showed that 8-methyl-5-[4-(trifluoromethyl)-1-benzothiophen-2-yl]-1,9-dihydro-2H-[1,3]oxazolo[4,5-h][2,3] benzodiazepin-2-one was devoid of sedative, pro-convulsive or motor side-effects, and enhanced the performance of rats in the object recognition test. In summary, we have discovered a first-in-class GABA-site inhibitor of extra-synaptic GABA(A) alpha(5) receptors that has promising drug-like properties and warrants further development. (C) 2015 Elsevier B.V. All rights reserved
DIHYDRO-OXAZOLOBENZODIAZEPINONE COMPOUNDS, A PROCESS FOR THERE PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
申请人:LING István
公开号:US20120232065A1
公开(公告)日:2012-09-13
Compounds of formula (I):
wherein:
R
1
represents a hydrogen atom or an alkyl group;
R
2
represents an alkyl group;
R
3
represents an aryl or heteroaryl group.
Medicinal products containing the same which are useful in the treatment or prevention of psychiatric and neurological disorders characterised by cognitive deficits.