专利号:US-11891384-B2 优先权日:2017-01-04 标题:Process for the preparation of Rivaroxaban involving novel intermediate 发明人:SATHE DHANANJAY G; DAS ARIJIT; Raikar Sanjay; SURVE YASHWANT S; PANDIT BHUSHAN S 权利人:UNICHEM LAB LTD 摘要:The present invention relates to the novel key intermediate, 4-{4-[(SS)-(Aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]-phenyl}-morpholin-3-one perchlorate, m the synthesis of rivaroxaban. The invention further relates to the crystalline form of novel intermediate, the process to prepare the novel intermediate and method of preparing rivaroxaban using this novel intermediate. The invention provides an improved and efficient process for preparation of Rivaroxaban.
专利号:US-2006069260-A1 优先权日:2004-09-28 标 题:Preparation of N-aryl pyridones 发明人:ZHANG HUIPING; CHEN BANG-CHI; ZHAO RULIN 权利人:ZHANG HUIPING; CHEN BANG-CHI; ZHAO RULIN 摘要:A novel process and intermediates thereof for making N-aryl pyridones of the type shown below from appropriate pyridinolates is described. n nThese compounds are useful as intermediates for the synthesis of clinical candidates.
专利号:WO-2013046211-A1 优先权日:2011-09-27 标 题 :Processes for the preparation of 5-chloro-n-({(5s)-2-oxo-3-[4-(3-oxo-4-morpholinyl) phenyl]-1,3-oxazolidin-5-yl}methyl)-2-thiophene-carboxamide and intermediates thereof 发明人:MOHAN RAO DODDA; KRISHNA REDDY PINGILI; VENKAT REDDY BUTHUKURI 权利人:SYMED LABS LTD; MOHAN RAO DODDA; KRISHNA REDDY PINGILI; VENKAT REDDY BUTHUKURI 摘要:TThe present invention provides processes for the preparation of 5-chloro-N-({(5S)-2-oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-1,3-oxazolidin-5-yl}methyl)-2-thiophene-carboxamide (I) and intermediates thereof. Also provides novel intermediates and their use in the synthesis of oxazolidine derivatives.
专利号:WO-2013027225-A1 优先权日:2011-08-19 标 题:Processes for the preparation of 4-{4-[5(s)-(aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]phenyl} morpholin-3-one 发明人:MOHAN RAO DODDA; KRISHNA REDDY PINGILI; VENKAT REDDY BUTHUKURI 权利人:SYMED LABS LTD; MOHAN RAO DODDA; KRISHNA REDDY PINGILI; VENKAT REDDY BUTHUKURI 摘要:The present invention provides simple, eco-friendly, cost-effective, reproducible, robust and industrial processes for the preparation of intermediate compound 4-{4-[5(S)-(aminomethyl)-2-oxo-1,3-oxazolidin-3-yl]phenyl}morpholin-3-one (II). The present invention also provides novel intermediates and their use in the synthesis of morpholinone oxazolidine derivatives.
专利号:WO-2015198259-A1 优先权日:2014-06-26 标 题:Process for the synthesis of rivaroxaban and intermediate for the production thereof 发明人:FERRARI MASSIMO; GHEZZI EMANUELE; GHEZZI MARCELLO 权利人:ERREGIERRE SPA 摘要:A process is described for the production of Rivaroxaban, a compound having the following structural formula: (I) by means of obtaining a novel intermediate of said process.
专利号:RU-2383540-C2 优先权日:2004-01-15 标 题 :Method for synthesis of 5-chloro-n-({(5s)-2-oxo-3-[4-(3-oxo-4-morpholinyl)-phenyl]-1,3-oxazolidin-5-yl}-methyl)-2-thiophenecarboxamide