Efficient Synthesis of 4-, 5-, and 6-Methyl-2,2‘-bipyridine by a Negishi Cross-Coupling Strategy Followed by High-Yield Conversion to Bromo- and Chloromethyl-2,2‘-bipyridines
A Novel Convenient Synthesis of Pyridinyl and Quinolinyl Triflates and Tosylates via One-Pot Diazotization of Aminopyridines and Aminoquinolines in Solution
one-pot transformation of 2-, 3-, and 4-aminopyridines, 2,6-diaminopyridines, and 2-aminoquinoline into the corresponding pyridinyl and quinolinyl trifluoromethanesulfonates and tosylates in solvents was developed. The procedure involves diazotization of the heterocyclic amines with sodium nitrite in mixed hexane–DMSO or hexane–DMF solutions in the presence of trifluoromethanesulfonic acid or p-toluenesulfonic
An efficient preparation of indolizines through a tandem palladium-catalyzed cross-coupling reaction and cycloisomerization
作者:Hyunseok Kim、Kwangmoo Lee、Sunggak Kim、Phil Ho Lee
DOI:10.1039/c0cc01945c
日期:——
An efficient synthetic method for producing indolizines through a tandem Pd-catalyzed selective allenyl cross-coupling reaction using organoindium reagents and cycloisomerization was developed in a one-pot process.
[EN] PYRIDIN-2-YL-METHYLAMINE DERIVATIVES, METHOD OF PREPARING AND APPLICATION AS MEDICINE<br/>[FR] DERIVES DE LA PYRIDIN-2-YL-METHYLAMINE, LEUR PROCEDE DE PREPARATION ET LEUR APPLICATION COMME MEDICAMENTS
申请人:PIERRE FABRE MEDICAMENT
公开号:WO1998022459A1
公开(公告)日:1998-05-28
(EN) The invention concerns novel pyridin-2-yl-methylamine derivatives of formula (I) in which: u represents a hydrogen atom or a methyl radical; v represents a hydrogen atom or a chlorine atom or a methyl radical; w represents a hydrogen atom or a fluorine atom or a methyl radical; x represents a hydrogen atom or a fluorine atom; y represents a chlorine atom or a methyl radical; z represents a hydrogen atom or a fluorine atom or a chlorine atom or a methyl radical; A represents a hydrogen atom or a fluorine atom or a chlorine atom; a C1-C5 alkyl radical; a fluoroalkyl radical; a cyclopropyl radical; an aromatic heterocyclic group with 5 chains; an alkoxy or alkythio group; an amine group; an amino cyclic group; an alkoxycarbonyl group. These compounds are useful as medicine in particular as antidepressant or analgesic.(FR) La présente invention concerne de nouveaux dérivés de la pyridin-2-yl-méthylamine de formule (I) dans laquelle: u représente un atome d'hydrogène ou un radical méthyl; v représente un atome d'hydrogène ou un atome de chlore ou un radical méthyl; w représente un atome d'hydrogène ou un atome de fluor ou un radical méthyl; x représente un atome d'hydrogène ou un atome de fluor; y représente un atome de chlore ou un radical méthyl; z représente un atome d'hydrogène ou un atome de fluor ou un atome de chlore ou un radical méthyl; A représente: un atome d'hydrogène ou un atome de fluor ou un atome de chlore; un radical alkyl en C1-C5; un radical fluoroalkyl; un radical cyclopropyl; un groupe hétérocyclique aromatique à 5 chaînons; un groupe alkoxy ou alkylthio; un groupe amino; un groupe amino cyclique; un groupe alkoxycarbonyl. Ces composés sont utiles comme médicaments notamment comme antidépresseurs et analgésiques.
Pyridin-2-yl-methylamine derivatives, method of preparing and
申请人:Pierre Fabre Medicament
公开号:US06020345A1
公开(公告)日:2000-02-01
The invention concerns novel pyridin-2-yl-methylamine derivatives of formula (I): ##STR1## in which: u represents hydrogen or methyl; v represents hydrogen, chlorine, or methyl; w represents hydrogen, fluorine, or methyl; x represents hydrogen or fluorine; y represents chlorine or methyl; z represents hydrogen, fluorine, chlorine, or methyl; A represents hydrogen, fluorine, chlorine, C.sub.1 -C.sub.5 alkyl, fluoroalkyl, cyclopropyl, a 5-membered aromatic heterocyclic group, alkoxy or alkythio, amino, cyclic amino, or alkoxycarbonyl. These compounds are useful as medicines, in particular as antidepressants or analgesics.