Cyclohexylamine → 6-Chloro-4-hydroxy-1-(4-methoxybenzyl)-2-oxo-1,2-dihydro-[1,8]-naphthyridine-3-carboxylic Acid Cyclohexylamide

HRID 901271Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 901271
[CH:1]1([NH2:7])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.C([O:10][C:11]([C:13]1[C:14](=[O:34])[N:15]([CH2:25][C:26]2[CH:31]=[CH:30][C:29]([O:32][CH3:33])=[CH:28][CH:27]=2)[C:16]2[C:21]([C:22]=1[OH:23])=[CH:20][C:19]([Cl:24])=[CH:18][N:17]=2)=O)C>C1(C)C(C)=CC=CC=1>[CH:1]1([NH:7][C:11]([C:13]2[C:14](=[O:34])[N:15]([CH2:25][C:26]3[CH:31]=[CH:30][C:29]([O:32][CH3:33])=[CH:28][CH:27]=3)[C:16]3[C:21]([C:22]=2[OH:23])=[CH:20][C:19]([Cl:24])=[CH:18][N:17]=3)=[O:10])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Komponenten

4

Edukt 2

HCID 7965CyclohexylamineHCID 547385986-Chloro-4-hydroxy-1-(4-methoxy-benzyl)-2-oxo-1,2-dihydro-[1,8]-naphthyridine-3-carboxylic Acid Ethyl Ester

Produkt 1

HCID 692188546-Chloro-4-hydroxy-1-(4-methoxybenzyl)-2-oxo-1,2-dihydro-[1,8]-naphthyridine-3-carboxylic Acid CyclohexylamideAusbeute 89,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 7237O-XyleneLösungsmittel

Reaktionsbedingungen

Temperatur
140 °C

Versuchsvorschrift

Cyclohexylamine (6.15 mL, 53.70 mmol) was added to a stirred solution of 6-chloro-4-hydroxy-1-(4-methoxy-benzyl)-2-oxo-1,2-dihydro-[1,8]-naphthyridine-3-carboxylic acid ethyl ester (75) (10.44 g, 26.85 mmol) in xylene and heated at 140° C. for 3 h. The solution was cooled and the solvent was evaporated under vacuum. The residue was suspended in water and extracted by dichloromethane. The combined organic phase was washed by water and brine, then dried over Na2SO4 and evaporated to yield 10.6 g (89%) of 6-chloro-4-hydroxy-1-(4-methoxy-benzyl)-2-oxo-1,2-dihydro-[1,8]-naphthyridine-3-carboxylic acid cyclohexylamide (93) as white solids. MP: 193° C.; 1H-NMR (CDCl3): δ 1.24-1.99 (m, 10H), 3.47 (s, 3H), 3.93 (m, 1H), 5.59 (s, 2H), 6.78 (m, 2H), 7.37 (m, 2H), 8.39 (d, J=2.4 Hz, 1H), 8.60 (d, J=2.4 Hz, 1H), 10.15 (s, 1H); EIMS m/z 442 (M+1).

Aufarbeitung

  1. temperatureThe solution was cooled
  2. customthe solvent was evaporated under vacuum
  3. extractionextracted by dichloromethane
  4. washThe combined organic phase was washed by water and brine
  5. dry with materialdried over Na2SO4
  6. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-47ab53085b6c43e7a8b7dba0ff402ec2
Quelldatensatz
uspto-grants-2008_04
Patentnummer
US07361760B2

Notizen zur Reaktion

Wird geladen…