METHODS FOR PREPARING OPTICALLY PURE (S)-(+)- AND/OR (R)-(-)-ISOMERS OF 10,11-DIHYDRO-10-HYDROXY-5H-DIBENZ[b,f]AZEPINE-5-CARBOXAMIDE, THEIR CORRESPONDING 10-ACETOXY-DERIVATIVES AND NOVEL INTERMEDIATE COMPOUNDS Russian patent published in 2008 - IPC C07D223/28 C07D401/12 

Abstract RU 2318813 C2

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates a method for synthesis of (S)-(+)- and/or (R)-(-)-isomers of 10,11-dihydro-10-hydroxy-5H-dibenz[b,f]azepine-5-carboxamide. Method involves separation of the corresponding racemic compound using tartaric acid anhydride. Also, invention relates to methods for synthesis of corresponding 10-acetoxy-derivatives and novel compounds of formulae (V): and (VI): wherein R means (C1-C6)-alkyl.

EFFECT: improved method of synthesis.

16 cl, 3 ex

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RU 2 318 813 C2

Authors

Lermont Dehvid Aleksander

Dates

2008-03-10Published

2002-05-10Filed