Process for the preparation of (2-cyanoethyl (4S)-4-(4-cyano-2-methoxy-phenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-3-carboxylate by racemate separation by means of diastereomeric tartaric acid esters

Process for the preparation of (2-cyanoethyl (4S)-4-(4-cyano-2-methoxy-phenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-3-carboxylate by racemate separation by means of diastereomeric tartaric acid esters

The invention relates to the diastereomer salt of formulae (Va), (Vb), (Vc) and/or (Vd), a process for preparing one or more diastereomer salts of the formulae (Va), (Vb), (Vc) and/or (Vd), a process for preparing the compound according to formula (IVa), a process for preparing the compound accordin...

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Hauptverfasser: PLATZEK, Johannes, LOVIS, Kai
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Sprache:eng
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator PLATZEK, Johannes
LOVIS, Kai
description The invention relates to the diastereomer salt of formulae (Va), (Vb), (Vc) and/or (Vd), a process for preparing one or more diastereomer salts of the formulae (Va), (Vb), (Vc) and/or (Vd), a process for preparing the compound according to formula (IVa), a process for preparing the compound according to formula (Ia), and the use of a tartaric acid ester of the formulae (IIIa) or (IIIb) in a process for preparing the compound according to formulae (Va), (Vb), (Vc), (Vd), (IVa), and/or (Ia).
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title Process for the preparation of (2-cyanoethyl (4S)-4-(4-cyano-2-methoxy-phenyl)-5-hydroxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-3-carboxylate by racemate separation by means of diastereomeric tartaric acid esters
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