atom economy has been developed for the synthesis of N-aryl-N′-(4-pyridinyl)ureas. With cheap selenium as the catalyst, carbonmonoxide (instead of phosgene) as the carbonyl reagent, N-aryl-N′-(4-pyridinyl)ureas can be obtained in a one-pot manner mostly in moderate to good yields via oxidative cross-carbonylation of 4-aminopyridine with a variety of aromaticamines in the presence of oxygen under atmospheric
“Urea to Urea” Approach: Access to Unsymmetrical Ureas Bearing Pyridyl Substituents
作者:Svetlana O. Kasatkina、Kirill K. Geyl、Sergey V. Baykov、Mikhail S. Novikov、Vadim P. Boyarskiy
DOI:10.1002/adsc.202101490
日期:2022.3.30
A protocol for the synthesis of unsymmetrical ureas substituted by pyridyl/quinolinyl moiety has been developed. This method concluded in metal- and base-free reamination of N,N-dimethyl-N‘-hetaryl ureas with a wide range of aryl and alkyl amines. The isolated yields vary from 40 to 96% depending on the nucleophilicity of the amines. The scope of this method includes more than 50 examples. The reaction
[EN] CELL ADHESION INHIBITORS<br/>[FR] INHIBITEURS DE L'ADHERENCE CELLULAIRE
申请人:BIOGEN, INC.
公开号:WO1996022966A1
公开(公告)日:1996-08-01
(EN) The present invention relates to novel compounds that are useful for inhibition and prevention of cell adhesion and cell adhesion-mediated pathologies. This invention also relates to pharmaceutical formulations comprising these compounds and methods of using them for inhibition and prevention of cell adhesion and cell adhesion-mediated pathologies. The compounds and pharmaceutical compositions of this invention can be used as therapeutic or prophylactic agents. They are particularly well-suited for treatment of many inflammatory and autoimmune diseases.(FR) L'invention concerne de nouveaux composés utiles pour inhiber et prévenir l'adhérence cellulaire, ainsi que les pathologies provoquées par l'adhérence cellulaire. Elle concerne également des compositions pharmaceutiques contenant ces composés, ainsi que des procédés permettant de les utiliser pour inhiber et prévenir l'adhérence cellulaire et les pathologies provoquées par l'adhérence cellulaire. On peut utiliser ces composés et ces compositions pharmaceutiques en tant qu'agents thérapeutiques et prophylactiques. Ils sont particulièrement appropriés pour le traitement de nombreuses maladies inflammatoires et auto-immunes.
The present invention relates to novel compounds that are useful for inhibition and prevention of cell adhesion and cell adhesion-mediated pathologies. This invention also relates to pharmaceutical formulations comprising these compounds and methods of using them for inhibition and prevention of cell adhesion and cell adhesion-mediated pathologies. The compounds and pharmaceutical compositions of this invention can be used as therapeutic or prophylactic agents. They are particularly well-suited for treatment of many inflammatory and autoimmune diseases.
N-Phenyl-N'-pyridinylureas as anticonvulsant agents
作者:Michael R. Pavia、Sandra J. Lobbestael、Charles P. Taylor、Fred M. Hershenson、David L. Miskell
DOI:10.1021/jm00164a061
日期:1990.2
A series of N-phenyl-N'-pyridinylureas was examined for anticonvulsant activity. Extensive structure/activity investigations revealed optimal activity in the N-(2,6-disubstituted-phenyl)-N'-(4-pyridinyl)urea series, with 37 exhibiting the best overall anticonvulsant profile. Compound 37 was effective against seizures induced by maximal electroshock but did not protect mice from clonic seizures produced by the convulsant pentylenetetrazol. The overall pharmacological profile suggests that 37 would be of therapeutic use in the treatment of generalized tonic-clonic and partial seizures. Compound 37 was selected for Phase 1 clinical trials.