[EN] IMIDAZOPYRAZINE DERIVATIVES, PROCESS FOR PREPARATION THEREOF, AND THEIR USES AS LUCIFERINS<br/>[FR] DÉRIVÉS D'IMIDAZOPYRAZINE, LEUR PROCÉDÉ DE PRÉPARATION ET LEURS UTILISATIONS EN TANT QUE LUCIFÉRINES
申请人:PASTEUR INSTITUT
公开号:WO2018197727A1
公开(公告)日:2018-11-01
The present invention is in the field of bioluminescence in biology and/or medicine. In particular, the invention provides imidazopyrazine derivatives, processes for preparation thereof, and their uses as luciferins.
The invention relates to compounds of the formula I
wherein
R, R
1
, R
2
, R
3
, X, and
n are defined in the specification. The invention also provides pharmaceutically suitable acid addition salts thereof and all forms of optically pure enantiomers, recemates or diastereomers and diastereomeric mixtures thereof. Compounds of the invention are useful for the treatment of Alzheimer's disease.
IMIDAZOPYRAZINE DERIVATIVES, PROCESS FOR PREPARATION THEREOF, AND THEIR USES AS LUCIFERINS
申请人:Institut Pasteur
公开号:EP3395803A1
公开(公告)日:2018-10-31
The present invention is in the field of bioluminescence in biology and/or medicine. In particular, the invention provides imidazopyrazine derivatives, processes for preparation thereof, and their uses as luciferins.
3'-Alkyl-3-cyanomethyloxindoles, prepared by a palladium-catalyzed domino Heck/cyanation, were efficiently converted to spiropyrrolidinyl-, spiropiperidinyl- and spirocyclopropyl-oxindoles. The so-obtained spirooxindoles bearing three diversity points were further functionalized via selective N-acylation, N-alkylation, N-sulfonylation, SNAr reaction and Buchwald-Hartwig N-arylation reaction to reach diverse set of heterocycles. (C) 2010 Elsevier Ltd. All rights reserved.
MALONAMIDE DERIVATIVES AS INHIBITORS OF GAMMA-SECRETASE FOR THE TREATMENT OF ALZHEIMER'S DISEASE