Organocatalytic Enantioselective Strecker Reaction with Seven-Membered Cyclic Imines
作者:Carles Lluna-Galán、Gonzalo Blay、Isabel Fernández、M. Carmen Muñoz、José R. Pedro、Carlos Vila
DOI:10.1002/adsc.201800754
日期:2018.10.4
A highly enantioselective Strecker reaction with dibenzo[b,f][1,4]oxazepines has been described using a dihydroquinine‐derived thiourea as organocatalyst. The reaction affords chiral 10,11‐dihydrodibenzo[b,f][1,4]oxazepine 11‐carbonitrile derivatives in excellent yields (up to 99%) and excellent enantioselectivities (up to 98%) under mild reaction conditions.
[EN] AMINO SUBSTITUTED DIARYL [A, D] CYCLOHEPTENE ANALOGS AS MUSCARINIC AGONISTS AND METHODS OF TREATMENT OF NEUROPSYCHIATRIC DISORDERS<br/>[FR] ANALOGUES DIARYL[A,D]CYCLOHEPTÈNES SUBSTITUÉS PAR UN GROUPE AMINO COMME AGONISTES MUSCARINIQUES ET PROCÉDÉS DE TRAITEMENT DE TROUBLES NEUROPSYCHIATRIQUES
申请人:ACADIA PHARM INC
公开号:WO2011025748A1
公开(公告)日:2011-03-03
Disclosed herein are analogs of clozapine and pharmaceutically acceptable salts, esters, amides, or prodrugs thereof; methods of synthesizing the analogs; and methods of using the analogs for treating neuorpsychiatric disorders. In some embodiments, the analogs are amino substituted diaryl[a,d]cycloheptenes.
An object of the present invention is to provide a medicinal drug much improved in anti tumor activity and excellent in safety. According to the present invention, there is provided a medicinal drug containing a compound represented by the following general formula (1) or a salt thereof as an active ingredient: [Formula 1] wherein X
1
represents a nitrogen atom or a group —CH═, R
1
represents a group -Z-R
6
, in which Z represents a group —CO—, a group —CH(OH)— or the like, R
6
represents a 5- to 15-membered monocyclic, dicyclic or tricyclic saturated or unsaturated heterocyclic group having 1 to 4 nitrogen atoms, oxygen atoms or sulfur atoms, R
2
represents a hydrogen atom or a halogen atom, Y represents a group —O—, a group —CO—, a group —CH(OH)— or a lower alkylene group, and A represents [Formula 2] wherein R
3
represents a hydrogen atom, a lower alkoxy group or the like, p represents 1 or 2, R
4
represents an imidazolyl lower alkyl group or the like.
A considerable number of new tri and tetracyclicheterocycles (II) and open chain intermediates were synthesized. These were tested in a battery of assays designed to reveal central nervous system (CNS) activity. However, none showed useful activity greater than known analogs.
1,3-Dipolar Cycloaddition of Difluoro-Substituted Azomethine Ylides. Synthesis and Transformations of 2-Fluoro-4,5-dihydropyrroles
作者:M. S. Novikov、A. F. Khlebnikov、M. V. Shevchenko、R. R. Kostikov、D. Vidovic
DOI:10.1007/s11178-005-0373-x
日期:2005.10
2-Fluoro-4,5-dihydropyrrole-3,4-dicarboxylic acid derivatives were obtained by reaction of difluorocarbene with N-substituted ketone imines in the presence of fumaronitrile, maleonitrile, or dimethyl maleate. The reaction involves intermediate formation of azomethine ylides and their subsequent cycloaddition at the double bond. 11H-Dibenz[b,e]azepine and 3,4-dihydroisoquinolines react with difluorocarbene in the presence of fumaronitrile to give fluoro-substituted dibenzo[c,f]pyrrolo[1,2-a]azepine and pyrrolo[2,1-a]-isoquinoline derivatives. Treatment of 2-fluoro-4,5-dihydropyrrole-3,4-dicarbonitrile with amines and alkoxides affords the corresponding 2-amino- and 2-alkoxy derivatives, while its reactions with hydrazine hydrate and benzimidamide lead to formation of substituted pyrrolo[2,3-c]pyrazole and pyrrolo[2,3-d]-pyrimidine derivatives.