Enantiomers of 1-[(4-chlorophenyl)phenylmethyl]-4-[(4-methylphenyl) sulfonyl]piperazine
AssigneeU C B S.A.
InventorsEric Cossement, Guy Bodson, Jean Gobert
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Abstract
Levorotatory and dextrorotatory enantiomers of 1-[(4-chlorophenyl)phenylmethyl]-4-[(4-methylphenyl)sulfonyl]piperazine of the formula ##STR1## their preparation and use for the preparation of substantially optically pure enantiomers of 1-[(4-chlorophenyl)phenylmethyl]piperazine, which are themselves valuable intermediate products for the preparation of optically active therapeutic compounds having a very high degree of optical purity.
Claims3
A compound selected from the group consisting of the levorotatory enantiomer of 1-[(4-chlorophenyl)phenylmethyl]-4-[(4-methylphenyl)sulfonyl]piperazine of the formula ##STR8## and the dextrorotatory enantiomer of 1-[(4-chlorophenyl)phenylmethyl ]-4-[(4-methylphenyl)sulfonyl]piperazine of the formula I.
Dependencies are inferred from the claim text.