ALKALOID AMINOESTER DERIVATIVES AND MEDICINAL COMPOSITIONS THEREOF
申请人:AMARI Gabriele
公开号:US20110311458A1
公开(公告)日:2011-12-22
The present invention relates to alkaloid aminoester compounds which act as muscarinic receptor antagonists, processes for their preparation, compositions comprising them, and therapeutic uses thereof.
Methods for preparing Ritodrine hydrochloride are provided. Also provided is non-hygroscopic, crystalline, polymorphic Ritodrine hydrochloride of Form I.
提供了制备盐酸利多巴林的方法。同时提供了非吸湿性、结晶性、多形性的利多巴林盐酸盐I型。
Process for producing optically active beta-amino alcohol
申请人:Nishiyama Akira
公开号:US20050277791A1
公开(公告)日:2005-12-15
A process for easily producing an optically active β-amino alcohol useful as a pharmaceutical intermediate from an inexpensive, readily available starting material is provided. A readily available α-substituted ketone is reacted with an optically active amine to yield a diastereomer mixture of an optically active α-substituted aminoketone. One of the diastereomers is isolated optionally after the diastereomers are converted to salts with an acid. The optically active α-substituted aminoketone or a salt thereof thus isolated was stereoselectively reduced to yield an optically active β-substituted amino alcohol. The optically active β-substituted amino alcohol is subjected to hydrogenolysis to produce an optically active β-amino alcohol or a salt thereof.
Process for producing optically active β-amino alcohol
申请人:Kaneka Corporation
公开号:US07408084B2
公开(公告)日:2008-08-05
A process for easily producing an optically active β-amino alcohol useful as a pharmaceutical intermediate from an inexpensive, readily available starting material is provided. A readily available α-substituted ketone is reacted with an optically active amine to yield a diastereomer mixture of an optically active α-substituted aminoketone. One of the diastereomers is isolated optionally after the diastereomers are converted to salts with an acid. The optically active α-substituted aminoketone or a salt thereof thus isolated was stereoselectively reduced to yield an optically active β-substituted amino alcohol. The optically active β-substituted amino alcohol is subjected to hydrogenolysis to produce an optically active β-amino alcohol or a salt thereof.
PROCESS FOR PRODUCING OPTICALLY ACTIVE s-AMINO ALCOHOL
申请人:KANEKA CORPORATION
公开号:EP1512677A1
公开(公告)日:2005-03-09
A process for easily producing an optically active β-amino alcohol useful as a pharmaceutical intermediate from an inexpensive, readily available starting material is provided. A readily available α-substituted ketone is reacted with an optically active amine to yield a diastereomer mixture of an optically active α-substituted aminoketone. One of the diastereomers is isolated optionally after the diastereomers are converted to salts with an acid. The optically active α-substituted aminoketone or a salt thereof thus isolated was stereoselectively reduced to yield an optically active β-substituted amino alcohol. The optically active β-substituted amino alcohol is subjected to hydrogenolysis to produce an optically active β-amino alcohol or a salt thereof.