Process for the preparation of an oxazolidinone antibacterial agent and intermediates thereof
申请人:Unión Químico Farmacéutica, S.A.
(UQUIFA)
公开号:EP2163547A1
公开(公告)日:2010-03-17
Comprising a preparation process of linezolid from a compound of formula (IV) where R1 is selected from a (C4-C10)-alkyl radical which is attached to the N atom by a tertiary C atom, and a straight or branched (C3-C10)-alkenyl radical attached to the N atom such that the C=C double bond is separated from the N atom by a methylene group. Compound (IV) is submitted either first to an acetylation reaction and then to a dealkylation reaction or, alternatively, first to a dealkylation reaction and then to an acetylation reaction to yield linezolid. It also comprises new intermediate compounds useful in such a preparation process, which are obtained with high yields and high chemical and optical purity, and which are processed easily to linezolid.