2-Methoxyethylamine → 3-(5-amino-2-chloro-4-fluorophenyl)-1-ethyl-7-(2-methoxyethylamino)-1,6-naphthyridin-2(1H)-one

HRID 1257141Notes

Reaction equation

HRID 1257141 reaction equation
[NH2:1][C:2]1[C:3]([F:23])=[CH:4][C:5]([Cl:22])=[C:6]([C:8]2[C:9](=[O:21])[N:10]([CH2:19][CH3:20])[C:11]3[C:16]([CH:17]=2)=[CH:15][N:14]=[C:13](Cl)[CH:12]=3)[CH:7]=1.[CH3:24][O:25][CH2:26][CH2:27][NH2:28]>O>[NH2:1][C:2]1[C:3]([F:23])=[CH:4][C:5]([Cl:22])=[C:6]([C:8]2[C:9](=[O:21])[N:10]([CH2:19][CH3:20])[C:11]3[C:16]([CH:17]=2)=[CH:15][N:14]=[C:13]([NH:28][CH2:27][CH2:26][O:25][CH3:24])[CH:12]=3)[CH:7]=1

Participants

4

Reactant 2

HCID 80182-MethoxyethylamineHCID 877715763-(5-Amino-2-chloro-4-fluorophenyl)-7-chloro-1-ethyl-1,6-naphthyridin-2(1h)-one

Product 1

HCID 896061693-(5-amino-2-chloro-4-fluorophenyl)-1-ethyl-7-(2-methoxyethylamino)-1,6-naphthyridin-2(1H)-oneYield 94%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A suspension of Example A3 (1.50 g, 4.26 mmol) in 2-methoxyethylamine (3 mL, 34.51 mm) was heated at 120° C. for 12 h. The reaction mixture was diluted with water and extracted with EtOAc (3×). The combined organic layers were washed with brine, dried (Na2SO4), and concentrated to provide 3-(5-amino-2-chloro-4-fluorophenyl)-1-ethyl-7-(2-methoxyethylamino)-1,6-naphthyridin-2(1H)-one (1.56 g, 94% yield) as a white solid. 1H NMR (400 MHz, DMSO-d6): δ 8.36 (s, 1H), 7.65 (s, 1H), 7.18 (d, J=11 Hz, 1H), 7.03 (m, 1H), 6.72 (d, J=9.5 Hz, 1H), 6.38 (s, 1H), 5.30 (s, 2H), 4.07 (m, 2H), 3.47 (m, 4H), 3.25 (s, 3H), 1.20 (s, 3H); MS (ESI) m/z: 391.1 [M+H]+.

Workup

  1. extractionextracted with EtOAc (3×)
  2. washThe combined organic layers were washed with brine
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-ba2196bbc9414b8cbbd390fafbd19948
Source dataset
uspto-grants-2013_06
Patent number
US08461179B1

Reaction notes

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