1252018-26-0Relevant academic research and scientific papers
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
-
, (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.
PROCESS FOR THE PREPARATION OF A RIVAROXABAN AND INTERMEDIATES FORMED IN SAID PROCESS
-
, (2012/12/13)
The invention relates to a process for the preparation of 5-chloro- N- ({(5-S)-2-oxo3-[4-(3-oxo-morj)holine-4-yl)-phenyl]-l,3-oxazolidine-5-yl}-methyl) thiophen-2-carboxamide having the INN rivaroxaban. The process is characterized by the reactions according to claim 1. The invention also relates to intermediates formed in the above process.
METHOD FOR THE PREPARATION OF SUBSTITUTED OXAZOLIDINONES
-
Page/Page column 28, (2012/11/06)
The present invention relates to methods for the preparation of a compound having the formula (X). Individual reaction steps as welt as intermediates are additionally claimed.
