The present invention provides a method for producing a compound of Formula (4): wherein R
1
is a hydrogen atom etc. by reacting a compound of Formula (2): wherein X
1
is a leaving group, with a compound of Formula (3): wherein R
1
is as defined above, in the presence of (a) a palladium compound and a tertiary phosphine or (b) a palladium carbene complex, in an inert solvent or without a solvent. The present invention can produce the compound of Formula (4), with high purity and high yield, and by a simple operation.
The present invention provides a method for producing a compound of Formula (4): wherein R1 is a hydrogen atom etc. by reacting a compound of Formula (2): wherein X1 is a leaving group, with a compound of Formula (3): wherein R1 is as defined above, in the presence of (a) a palladium compound and a tertiary phosphine or (b) a palladium carbene complex, in an inert solvent or without a solvent. The present invention can produce the compound of Formula (4), with high purity and high yield, and by a simple operation.
PROCESS AND INTERMEDIATES FOR THE PREPARATION OF BENZO[B]THIOPHENE COMPOUNDS
申请人:Crystal Pharma S.A.U
公开号:EP3150591A1
公开(公告)日:2017-04-05
A process for preparing compounds of formula (I), or a salt or solvate thereof, including Brexpiprazole, which process comprises cyclization of a compound of formula (II) or (III), or a salt or solvate thereof. The invention also refers to intermediates of said process.
Process and intermediates for the preparation of benzo[b]thiophene compounds
申请人:CRYSTAL PHARMA, S.A.U.
公开号:US11312708B2
公开(公告)日:2022-04-26
A process for preparing compounds of formula (I), or a salt or solvate thereof, including Brexpiprazole, which process comprises cyclization of a compound of formula (II) or (III), or a salt or solvate thereof. The invention also refers to intermediates of said process.