1349248-79-8Relevant articles and documents
Rivaroxaban intermediate preparation method
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, (2016/10/10)
The invention discloses a rivaroxaban intermediate preparation method. 4-(4-aminophenyl)morpholinyl-3-one and S-glycidol as staring raw materials are synthesized into a compound shown in the structural formula (IV), wherein in the formula (IV), R represents methyl, p-methylphenyl, phenyl or trifluoromethyl. The rivaroxaban intermediate preparation method has the advantages of mild reaction conditions, operation simpleness, high yield and industrialization easiness.
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
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, (2013/07/25)
The present invention relates to processes for the preparation of oxazolidinone derivatives. More particularly the present invention provides processes for the preparation of 5-chloro-N-( {(5S)-2-oxo-3-[4-(3-oxo-4-moφholinyl)phenyl]-1,3-oxazolidin-5-yl methyl)-2-thiophene-carboxamide and intennediates thereof. Where L is a leaving group like halogen atom (F, CI, Br, I) or -OS02R where R = C'-4 alkyl straight chain or branched chain, sub or unsubstituted aryl, sub or unsub aryl alkyl; with a suitable reagent to provide the compound of formula (II). The reaction step is performed by reacting the compound of formula (IV) with amine source which may be dissolved in solvent like water or alcohol. For example ammonium hydroxide.
PROCESSES FOR THE PREPARATION OF 4-{4-[5(S)-(AMINOMETHYL)-2-OXO-1,3-OXAZOLIDIN-3-YL]PHENYL} MORPHOLIN-3-ONE
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Page/Page column 18, (2013/03/26)
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.