PROCESS FOR PRODUCING BENZO [B] [1,4] DIAZEPINE-2, 4-DIONE COMPOUND
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:US20140194621A1
公开(公告)日:2014-07-10
A process for producing a compound represented by formula (1),
wherein each of R
1
, R
2
, R
3
and R
4
, which may be the same or different, represents a hydrogen atom or a lower alkyl group, the process includes deprotecting a protective group (R
5
) of a compound represented by formula (2),
wherein R
1
, R
2
, R
3
and R
4
are as defined above, and R
5
represents a protective group of a hydroxy group. The process is an industrially advantageous, simple, and efficient process for producing a key intermediate of a benzo[b][1,4]diazepine-2,4-dione compound, which is a therapeutic medicine for arrhythmia.
Process for producing benzo[B][1,4]diazepine-2,4-dione compound
申请人:Tsujimori Hisayuki
公开号:US08796447B2
公开(公告)日:2014-08-05
A process for producing a compound represented by formula (1),
wherein each of R1, R2, R3 and R4, which may be the same or different, represents a hydrogen atom or a lower alkyl group, the process includes deprotecting a protective group (R5) of a compound represented by formula (2),
wherein R1, R2, R3 and R4 are as defined above, and R5 represents a protective group of a hydroxy group. The process is an industrially advantageous, simple, and efficient process for producing a key intermediate of a benzo[b][1,4]diazepine-2,4-dione compound, which is a therapeutic medicine for arrhythmia.
Process for producing benzo [b] [1,4] diazepine-2,4-dione compound
申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US08940889B2
公开(公告)日:2015-01-27
A process for producing a compound represented by formula (1),
wherein each of R1, R2, R3 and R4, which may be the same or different, represents a hydrogen atom or a lower alkyl group, the process includes deprotecting a protective group (R5) of a compound represented by formula (2),
wherein R1, R2, R3 and R4 are as defined above, and R5 represents a protective group of a hydroxy group. The process is an industrially advantageous, simple, and efficient process for producing a key intermediate of a benzo[b][1,4]diazepine-2,4-dione compound, which is a therapeutic medicine for arrhythmia.