A compound of general formula 1 in which: - R 1 is one or more identical or different substituent(s) on the benzene ring, each independently being a hydrogen or a halogen atom, or a C 1-4 alkyl group, or a C 1-4 alkoxy group, or a C 1-4 hydroxyalkyl group, or an alkylcarbonyl group, or an alkoxycarbonyl group, or an OH group, or an SO 2 R group with R being an alkyl, or a CN group, or a CF 3 group, or an OCF 3 group; - n = 1, 2 or 3; - R 2 is one or more identical or different substituent(s) on the oxazolidinone or morpholinone rings, each independently being: a hydrogen atom, or a C 1-4 alkyl group, or a C 1-4 alkoxy group, or a C 1-4 hydroxyalkyl group, or an alkylcarbonyl group, or an alkoxycarbonyl group, or an alkoxyphenyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or an alkoxybenzyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or a hydroxybenzyl group, or a benzyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or a phenyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or else R 2 is a ring fused with the oxazolidinone or morpholinone group that bears it, constituted by a benzene substituted or not with a C 1-4 alkoxy, or a hydroxy, or a halogen or a cyano; - m = 0 or 1. - R 1 is one or more identical or different substituent(s) on the benzene ring, each independently being a hydrogen or a halogen atom, or a C 1-4 alkyl group, or a C 1-4 alkoxy group, or a C 1-4 hydroxyalkyl group, or an alkylcarbonyl group, or an alkoxycarbonyl group, or an OH group, or an SO 2 R group with R being an alkyl, or a CN group, or a CF 3 group, or an OCF 3 group; - n = 1, 2 or 3; - R 2 is one or more identical or different substituent(s) on the oxazolidinone or morpholinone rings, each independently being: a hydrogen atom, or a C 1-4 alkyl group, or a C 1-4 alkoxy group, or a C 1-4 hydroxyalkyl group, or an alkylcarbonyl group, or an alkoxycarbonyl group, or an alkoxyphenyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or an alkoxybenzyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or a hydroxybenzyl group, or a benzyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or a phenyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or else R 2 is a ring fused with the oxazolidinone or morpholinone group that bears it, constituted by a benzene substituted or not with a C 1-4 alkoxy, or a hydroxy, or a halogen or a cyano; a hydrogen atom, or a C 1-4 alkyl group, or a C 1-4 alkoxy group, or a C 1-4 hydroxyalkyl group, or an alkylcarbonyl group, or an alkoxycarbonyl group, or an alkoxyphenyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or an alkoxybenzyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or a hydroxybenzyl group, or a benzyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or a phenyl group - optionally substituted with one or more identical or different substituent(s), each independently being a C 1-4 alkoxy group, or a C 1-4 alkyl group or a halogen, or a hydroxy - or else R 2 is a ring fused with the oxazolidinone or morpholinone group that bears it, constituted by a benzene substituted or not with a C 1-4 alkoxy, or a hydroxy, or a halogen or a cyano; - m = 0 or 1.