ES8204420A1 - Procedimiento para la obtencion del 2-(n-bencil-n-metil-ami-no-etilmetil-2,6-dimetil-4-(m-nitrofenil)-1,4-dihidropiridi-na-3,5-dicarboxilato
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Procedimiento para la obtencion del 2-(n-bencil-n-metil-ami-no-etilmetil-2,6-dimetil-4-(m-nitrofenil)-1,4-dihidropiridi-na-3,5-dicarboxilato
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LEVANTE FARMA IND
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LEVANTE FARMA IND
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Publication of ES8204420A1publicationCriticalpatent/ES8204420A1/es
PROCEDIMIENTO PARA LA OBTENCION DEL 2-(N-BENCIL-N-METILAMINOETILMETIL-2,6-DIMETIL-4-(M-NITROFENIL)-1,4-DIHIDROPIRIDINA-3,5-DICARBOXILATO. CONSISTE EN LA REACCION DE N-BENCILACION DEL N-METIL-2-AMINOETANOL CON CLORURO DE BENCILO EN MEDIO BASICO, SEGUIDA DE LA REACCION DE ESTERIFICACION DEL AMINOALCOHOL FORMADO CON DICETENA EN PRESENCIA DE ACETATO ANHIDRIDO Y REACCION DE CICLACION DE LA DIHIDROPIRIDINA POR TRATAMIENTO DEL ESTER ACETILACETICO DEL N-METIL-N-BENCIL-2-AMINOETANOL OBTENIDO CON M-NITROBENZALDEHIDO Y EL ESTER METILICO DEL ACIDO 2-AMINOCROTONICO.
ES499727A1981-02-231981-02-23Procedimiento para la obtencion del 2-(n-bencil-n-metil-ami-no-etilmetil-2,6-dimetil-4-(m-nitrofenil)-1,4-dihidropiridi-na-3,5-dicarboxilato
ExpiredES8204420A1
(es)
Process for the preparation of derivatives of 1,4-dihydropyridine-3-carboxylic acid, derivatives of 1,4-dihydropyridine-3-carboxylic acid and the use of these derivatives for the preparation of 1,4-dihydropyridine-3,5-dicarboxylates
Спосіб одержання бензолсульфонатної солі 3-етіл-5метілового ефіру 2-(2-аміноетоксіметіл)-4-(2-хлорфеніл)-6-метіл-1,4-дігідропірідін-3,5-дікарбонової кислоти
Composition a base d'ester 3-beta-methoxy-ethylique et 5-isopropylique de 1,4-dihydro-2,6-dimethyl-4-(3'-nitrophenyl)pyridine, destinee a la therapeutique cerebrale
Fremgangsmaade til fremstilling af carboxylsyreestere ved omsaetning af den carboxylsyre, en hydroxylforbindelse og et carbodiimid i naervaerelse af pyridin eller en 3- eller 4-alkylpyridin
Werkwijze ter bereiding van een 2-(3-acylamino-4-acylaminothio-2-oxoazetidine-1-yl)-2-(1-methylethenyl)azijnzuur derivaat, alsmede werkwijze ter bereiding van esters van 7-acylamino-3-(acetoxymethyl)cefem-4-carbonzuren.
Fremgangsmaade til fremstilling af 2,4-dichlor- eller 2-methyl-4-chlorphenoxyeddikesyre og alfa-2,4-dichlor- eller alfa-2-methyl-4-chlorphenoxypropionsyre
Fremgangsmaade til fremstilling af den optiske d-isomer af diastereomeren aeaae af 2,6-dimethyl-4-(m-nitrophenyl)-1,4-dihydropyridin-3,5-dicarboxylsyre-3-(1-benzylpyrrolidin-3-yl)-ester-5-methylester