[EN] NOVEL PROCESS FOR THE PREPARATION OF SUBSTANTIALLY PURE 5-(3,5-DIMETHYLPHENOXY)METHYL-2-OXAZOLIDINONE<br/>[FR] PROCEDE RELATIF A L'ELABORATION DE 5-(3,5-DIMETHYLPHENOXY)METHYL-2-OXAZOLIDINONE SENSIBLEMENT PURE
申请人:SUN PHARMACEUTICAL IND LTD
公开号:WO2003061552A2
公开(公告)日:2003-07-31
Substantially pure 5-(3,5-dimethylphenoxy)methyl-2-oxazolidinone, a compound of formula (1), is prepared by a novel route, which comprises reacting 3-(3,5-dimethylphenoxy)-2-hydroxypropylamine, a compound of formula (2), or its acid addition salt with a compound of formula (3) (YCOZ) wherein Y and Z are selected from X, CCl3CO, 1-imidazolyl or substituted imidazolyl, and OR; wherein X is a halide, preferably chloride, and R is selected from substituted or unsubstituted linear, branched or cyclic alkyl and aryl or heteroaryl radicals. The compound of formula (2) is prepared by treating 2-[(3,5-Dimethylphenoxy)methyl]oxirane with ammonia to yield compound of formula (2), and optionally purifying compound of formula (2) by converting to its acid addition salt.