Cyclizations of monocyclic 5-nitropyridin-2(1H)-ones
摘要:
Reactions of 5-nitropyridin-2(1H)-one and its N-methyl derivative with hydrazine hydrate led to the formation of (1H-pyrazol-3-yl)acetohydrazide. Under analogous conditions, 1,3-dimethyl-5-nitropyridin-2(1H-one gave rise to 2-(1H-pyrazol-3-yl)propionohydrazide, while 6-methyl-5-nitropyridin-2(1H-one was converted into (5-methyl-1H-pyrazol-3-yl)acetohydrazide. Hydrazinolysis of4-methyl-5-nitropyridin-2(1H)-one resulted in the formation of 3-methyl-4-nitro-1H-pyrazole. The mechanism of recyclization of nitropyridine derivatives by the action of hydrazine hydrate was studied using 5-nitropyridin-2(1H)-one and 1-methyl-5-nitropyridin-2(1H)-one as examples.
[EN] IMIDAZOPYRROLIDINONE DERIVATIVES AND THEIR USE IN THE TREATMENT OF DISEASE<br/>[FR] DÉRIVÉS IMIDAZOPYRROLIDINONE ET LEUR UTILISATION DANS LE TRAITEMENT DE MALADIES
申请人:NOVARTIS AG
公开号:WO2014191894A1
公开(公告)日:2014-12-04
The present invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
The invention relates to compounds of formula (I): (I) as described herein, pharmaceutical preparations comprising such compounds, uses and methods of use for such compounds in the treatment of a disorder or a disease mediated by the activity of MDM2 and/or MDM4, and combinations comprising such compounds.
[EN] PYRROLOPYRROLONE DERIVATIVES AND THEIR USE AS BET INHIBITORS<br/>[FR] DÉRIVÉS DE PYRROLOPYRROLONE ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE PROTÉINES BET
申请人:NOVARTIS AG
公开号:WO2015075665A1
公开(公告)日:2015-05-28
The present invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
[EN] BICYCLIC HETEROCYCLE DERIVATIVES AS BROMODOMAIN INHIBITORS<br/>[FR] DÉRIVÉS D'HÉTÉROCYCLES BICYCLIQUES COMME INHIBITEURS DE BROMODOMAINES
申请人:ORION CORP
公开号:WO2017001733A1
公开(公告)日:2017-01-05
The invention relates to novel bicyclic heterocycle derivatives of formula (I) wherein Cy1,Cy2, R1,R2 and L have the meaning given in the specification, and pharmaceutically acceptable salts thereof. The compounds of formula (I) are usefulas bromodomain inhibitors in the treatment or prevention of diseases or disorders where bromodomain inhibition is desired.
[EN] PYRAZOLOPYRROLIDINE DERIVATIVES AND THEIR USE IN THE TREATMENT OF DISEASE<br/>[FR] NOUVEAUX DÉRIVÉS PYRAZOLOPYRROLIDINE ET LEUR UTILISATION DANS LE TRAITEMENT DE MALADIES
申请人:NOVARTIS AG
公开号:WO2014191896A1
公开(公告)日:2014-12-04
The present invention provides a compound of formula (I) or a pharmaceutically acceptable salt thereof; a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.