PRODUCTION OF AGGLOMERATES OF INOGATRAN AND THE COMPOUND INOGATRAN ANHYDRATE
申请人:AstraZeneca AB
公开号:EP1191932A1
公开(公告)日:2002-04-03
US6531490B1
申请人:——
公开号:US6531490B1
公开(公告)日:2003-03-11
[EN] PRODUCTION OF AGGLOMERATES OF INOGATRAN AND THE COMPOUND INOGATRAN ANHYDRATE<br/>[FR] PRODUCTION D'AGGLOMERATS D'INOGATRAN ET COMPOSE D'ANHYDRATE D'INOGATRAN
申请人:ASTRAZENECA AB
公开号:WO2000076504A1
公开(公告)日:2000-12-21
The invention relates to a process for producing compact, spherical agglomerates of inogatran having a narrow size distribution and to the compound inogatran anhydrate. The process comprises the following consecutive steps: dissolving inogatran in one of its stable, hygroscopic, hydrate forms in a mixture of a good solvent for inogatran (L1) and a poor solvent for inogatran (L3) to form a concentrated solution; optionally filtering the solution; concentrating the concentrated solution further; adding a non-solvent for inogatran (L2) to obtain supersaturation; adding further (L2) when nucleation has started.