전기화학적 방법에 의한 (4S)-4--5-에톡시-2,8-디메틸-1,4-디히드로-1,6-나프티리딘-3-카르복스아미드의 제조 및 (4S)-4--5-에톡시-2,8-디메틸-1,4-디히드로-1,6-나프티리딘-3-카르복스아미드의 회수 방법

• Main Authors: ASSMANN JENS, PLATZEK JOHANNES, GOTTFRIED KATHRIN, LOLLI GIULIO
• Format: Patent
• Language: Korean
• Published: 27.04.2018
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS

본 발명은 화학식 ent-(I)의 (4R)-4-(4-시아노-2-메톡시페닐)-5-에톡시-2,8-디메틸-1,4-디히드로-1,6-나프티리딘-3-카르복스아미드로부터 출발하여 화학식 (I)의 (4S)-4-(4-시아노-2-메톡시페닐)-5-에톡시-2,8-디메틸-1,4-디히드로-1,6-나프티리딘-3-카르복스아미드를 제조하는 신규 방법 및 화학식 (I)의 (4S)-4-(4-시아노-2-메톡시페닐)-5-에톡시-2,8-디메틸-1,4-디히드로-1,6-나프티리딘-3-카르복스아미드를 회수하는 신규 방법에 관한 것이다. The present invention relates to a novel method for the preparation of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1-6-naphthyridine-3-carboxamide of the formula (I) and for the recovery of (4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1-6-naphthyridine-3-carboxamide of the formula (I) starting from (4R)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridine-3-carboxamide of the formula ent-(I).