PROCESS FOR PRODUCING PHENYL-SUBSTITUTED HETEROCYCLIC DERIVATIVE THROUGH COUPLING USING TRANSITION METAL CATALYST
申请人:Komiyama Masato
公开号:US20110313169A1
公开(公告)日:2011-12-22
A process for efficiently producing, through few steps either a xanthine oxidase inhibitor, which is a therapeutic agent for hyperuricemia, or an intermediate therefore. The process is a novel coupling process which comprises subjecting a compound represented by formula (1) to coupling reaction with a compound represented by formula (2) in the presence of a transition metal compound to thereby obtain a compound represented by formula (3).
METHOD FOR PRODUCING PHENYL-SUBSTITUTED HETEROCYCLIC DERIVATIVE BY MEANS OF COUPLING METHOD USING PALLADIUM COMPOUND
申请人:Komiyama Masato
公开号:US20130158272A1
公开(公告)日:2013-06-20
The present invention provides a method for producing a xanthine oxidase inhibitor, which is a therapeutic agent for hyperuricemia, or intermediates of the same, said method being efficient and using a short process. The present invention is a novel coupling method for obtaining a compound represented by formula (3) by bringing about a coupling reaction between a compound represented by formula (1) and a compound represented by formula (2), in the presence of a palladium compound, a ligand capable of coordinating to the palladium compound, a base, a C
1
-C
40
carboxylic acid, and at least one kind of additive.
Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same
申请人:Takasago International Corporation
公开号:EP0927577A1
公开(公告)日:1999-07-07
The invention has an object of safely and simply preparing a large amount of a ruthenium metathesis catalyst, which is used as a catalyst for a carbon-carbon bond formation using, particularly, a metathesis reaction. The metathesis catalyst comprises the following complex composition (A) or (B). The composition (A) comprises (1) RuX12(arene)(PR1R2R3) and (i) R4CHX22, (ii) R5C≡CH or (iii) R4CHX22 and a reducing agent. The composition B comprises (4) [RuX12(arene)]2, (5) PR1R2R3, (6) (i) R5C≡CH or (ii) R4CHX22 and a reducing agent.
METHOD FOR PRODUCING PHENYL-SUBSTITUTED HETEROCYCLIC DERIVATIVE BY MEANS OF COUPLING METHOD USING A PALLADIUM COMPOUND
申请人:Teijin Pharma Limited
公开号:EP2610248A1
公开(公告)日:2013-07-03
The present invention provides a method for producing a xanthine oxidase inhibitor, which is a therapeutic agent for hyperuricemia, or intermediates of the same, said method being efficient and using a short process. The present invention is a novel coupling method for obtaining a compound represented by formula (3) by bringing about a coupling reaction between a compound represented by formula (1) and a compound represented by formula (2), in the presence of a palladium compound, a ligand capable of coordinating to the palladium compound, a base, a C1-C40 carboxylic acid, and at least one kind of additive.