Scope and Limitations in the Regioselective Synthesis of 1,3,5-Trisubstituted Pyrazoles from b-Amino Enones and Hydrazine Derivatives. 13C-Chemical Shift Prediction Rules for 1,3,5-Trisubstituted Pyrazoles
[EN] AGENT FOR PREVENTING OR TREATING NEUROPATHY<br/>[FR] AGENT POUR LA PRÉVENTION OU LE TRAITEMENT DE NEUROPATHIE
申请人:TAKEDA CHEMICAL INDUSTRIES LTD
公开号:WO2004039365A1
公开(公告)日:2004-05-13
The present invention provides an agent for preventing or treating neuropathy having superior action and low toxicity. This agent comprises a compound represented by the formula:wherein ring A is a 5-membered aromatic heterocycle containing 2 or more nitrogen atoms, which may further have substituent(s);B is an optionally substituted hydrocarbon group or an optionally substituted heterocyclic group;X is a divalent acyclic hydrocarbon group;Z is -O-, -S-, -NR2-, -CONR2- or -NR2CO- (R2 is a hydrogen atom or an optionally substituted alkyl group);Y is a bond or a divalent acyclic hydrocarbon group;R1 is an optionally substituted cyclic group, an optionally substituted amino group or an optionally substituted acyl group, provided that when the 5-membered aromatic heterocycle represented by ring A is imidazole, then Z should not be -O-, or a salt thereof.
[EN] PYRAZOLE COMPOUNDS AS INTEGRIN RECEPTOR ANTAGONISTS DERIVATIVES<br/>[FR] COMPOSES DE PYRAZOLE EN TANT QU'ANTAGONSITES DES RECEPTEURS DE L'INTEGRINE
申请人:PHARMACIA CORP
公开号:WO2004058761A1
公开(公告)日:2004-07-15
The present invention relates to pharmaceutical compositions comprising compounds of the Formula (I), and methods of selectively inhibiting or antagonizing the αVβ3 and/or the α Vβ5 integrin without significantly inhibiting the α Vβ6 integrin.
2,6-Disubstituted 5-hydroxy-3(2H)-pyridazinone-4-carboxylic acid ethyl esters were synthesized from α-keto esters via an efficient three-step sequence including hydrazone formation, acylation with ethyl malonyl chloride, and subsequent Dieckmann cyclization.
[EN] PROCESS FOR THE PREPARATION OF ISOCARBOXAZID<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ISOCARBOXAZID
申请人:LUNDBECK PHARMACEUTICALS ITALY S P A
公开号:WO2017021246A1
公开(公告)日:2017-02-09
This invention relates to a novel chemical process for the synthesis of N'-benzyl-5- methylisoxazole-3-carbohydrazide (Isocarboxazid) which comprises reacting 5-methyl-3- isoxazole carboxylic acid ester with benzylhydrazine or a salt thereof in an aprotic organic solvent and in the presence of an organic base.
Substituted pyrazolo corticoids as topical antiinflammatory agents
作者:John Hannah、Kenneth Kelly、Arthur A. Patchett、Sanford L. Steelman、Evan R. Morgan
DOI:10.1021/jm00236a012
日期:1975.2
The synthesis of a series of substituted pyrazolo corticoids is described. Of these 11beta,17alpha,21-trihydroxy-6,16alpha-dimethyl-4,6-pregnadieno[3,2-c]-2'-(4-pyridly)pyrazole (21) shows an excellent separation of systemic to local activity in the model animal test. Compound 21 exhibits high vasoconstriction activity in human volunteers and is clinically effective in the treatment of psoriasis.