A process for preparing a batch of highly purified, pharmaceutical grade tasimelteon comprises analyzing a batch of tasimelteon synthesized under GMP conditions for the presence of one or more identified impurities.
SYNTHESIS OF 1-(2,3-DIHYDROBENZOFURAN-4-YL)ETHANONE AS INTERMEDIATE IN THE PREPARATION OF RAMELTEON
申请人:CLuzeau Jerome
公开号:US20120083526A1
公开(公告)日:2012-04-05
The present invention relates in general to the field of organic chemistry and in particular to the preparation of 1-(2,3-dihydrobenzofuran-4-yl)ethanone, an intermediate in preparation of (S)—N-[2-(1,6,7,8-tetrahydro-2H-indeno-[5,4-b]furan-8-yl)ethyl]propionamide, i.e. ramelteon.
Synthesis of 1-(2,3-Dihydrobenzofuran-4-YL)ethanone as intermediate in the preparation of ramelteon
申请人:LEK Pharmaceuticals d.d.
公开号:EP2243775A1
公开(公告)日:2010-10-27
The present invention relates in general to the field of organic chemistry and in particular to the preparation of 1-(2,3-dihydrobenzofuran-4-yl)ethanone, an intermediate in preparation of (S)-N-[2-(1,6,7,8-tetrahydro-2H-indeno-[5,4-b]furan-8-yl)ethyl]propionamide, i.e. ramelteon.
A process for preparing a batch of highly purified, pharmaceutical grade tasimelteon comprises analyzing a batch of tasimelteon synthesized under GMP conditions for the presence of one or more identified impurities.
A process for preparing a batch of highly purified, pharmaceutical grade tasimelteon comprises analyzing a batch of tasimelteon synthesized under GMP conditions for the presence of one or more identified impurities.