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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 47598Erstellt: 24. Oktober 2026

Nicotinic Acid → 3-O-ethyl 5-O-methyl 2-(2-aminoethoxymethyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate;pyridine-3-carboxylate

https://huagongshe.com/de/reaction/47598

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktNicotinic AcidHCID 938—
EduktAmlodipineHCID 2162—
LösungsmittelEthanolHCID 702—
Produkt3-O-ethyl 5-O-methyl 2-(2-aminoethoxymethyl)-4-(2-chlorophenyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate;pyridine-3-carboxylateHCID 8659039085%

Reaktionsbedingungen

Temperatur0 °C

Reaktionsschritte

Amlodipine free base (4.09 g) was added to 40 mL of ethanol. The mixture was heated at reflux and stirred until the solid was completely dissolved. Nicotinic acid (1.23 g) was added to the amlodipine solution and then the mixture was slowly cooled down to 0° C. within one hour. The solids formed were isolated by filtration, washed with ethyl acetate and dried under reduced pressure to yield 4.51 g of amlodipine nicotinate.

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS06699892B2
Quelldatensatzuspto-grants-2004_03
ORD IDord-08d6d8aa25df402e84fb3648a2237202
Quellennotizuspto-grants-2004_03