2-AMINO-3-SULPHONYL-TETRAHYDRO-PYRAZOLO[1,5-A]PYRIDO-PYRIMIDINE ANTAGONISTS OF SEROTONIN 5-HT6 RECEPTORS, METHODS FOR THE PRODUCTION AND USE THEREOF
申请人:Ivashchenko Andrey Alexandrovich
公开号:US20110046149A1
公开(公告)日:2011-02-24
The invention relates to serotonin 5-HT
6
receptor antagonists—novel 2-amino-3-arylsulfonyl-6,7,8,9-tetrahydropyrazolo[1,5-a]pyrido[4,3-e]pyrimidines and substituted 2-amino-3-arylsulfonyl-5,6,7,8-tetrahydropyrazolo[1,5-a]pyrido[4,3-d]pyrimidines, drug substances and pharmaceutical compositions comprising the said drug substances as the said compounds, and also to method of prophylaxis and treatment of various diseases of central nervious system in humans and animals pathogenesis of which is associated with serotonin 5-HT
6
receptors including cognitive and neurodegenerative diseases.
Substituted 2-amino-3-arylsulfonyl-6,7,8,9-tetrahydropyrazolo[1,5-a]pyrido[4,3-e]pyrimidines of the general formula 1 and substituted 2-amino-3-arylsulfonyl-5,6,7,8-tetrahydropyrazolo[1,5-a]pyrido[4,3-d]pyrimidines of the general formula 2 and pharmaceutically acceptable salts and/or hydrates thereof.
wherein: Ar is optionally substituted aryl or optionally substituted heteroaryl; R
1
is hydrogen, optionally substituted C
1
-C
3
alkyl, C
1
-C
4
alkyloxycarbonyl; R
2
is hydrogen, halogen or optionally substituted C
1
-C
3
alkyl; R
1
3
and R
2
3
represent optionally alike: hydrogen, optionally substituted C
1
-C
3
alkyl or R
1
3
and R
2
3
together with the nitrogen atom to which they are attached form an optionally substituted azaheterocycle.