Tetrahydrofuran → 9-bromo-6-{[(1R)-2-methyl-1-(trifluoromethyl)propyl]amino}benzo[c]-1,6-naphthyridin-1(2H)-one

HRID 2192962Notes

Reaction equation

HRID 2192962 reaction equation
[Br:1][C:2]1[CH:25]=[CH:24][C:5]2[C:6]([NH:15][C@@H:16]([C:20]([F:23])([F:22])[F:21])[CH:17]([CH3:19])[CH3:18])=[N:7][C:8]3[C:13]([C:4]=2[CH:3]=1)=[C:12](Cl)[N:11]=[CH:10][CH:9]=3.C1C[O:29]CC1>Cl.CCOC(C)=O>[Br:1][C:2]1[CH:25]=[CH:24][C:5]2[C:6]([NH:15][C@@H:16]([C:20]([F:23])([F:22])[F:21])[CH:17]([CH3:19])[CH3:18])=[N:7][C:8]3[CH:9]=[CH:10][NH:11][C:12](=[O:29])[C:13]=3[C:4]=2[CH:3]=1

Participants

5

Reactant 2

HCID 8028TetrahydrofuranHCID 593755309-bromo-1-chloro-N-[(1R)-2-methyl-1-(trifluoromethyl)propyl]benzo[c]-1,6-naphthyridin-6-amine

Product 1

HCID 249053779-bromo-6-{[(1R)-2-methyl-1-(trifluoromethyl)propyl]amino}benzo[c]-1,6-naphthyridin-1(2H)-one

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 8857Ethyl AcetateSolvent2×

Procedure

9-bromo-1-chloro-N-[(1R)-2-methyl-1-(trifluoromethyl)propyl]benzo[c]-1,6-naphthyridin-6-amine (1.0 g, 2.31 mmol) in 6 N HCl (4 mL) and THF (4 mL) was heated to 90° C. for 2 hr. The reaction was cooled and diluted with EtOAc and quenched with sat. NaHCO3. The mixture was extracted and the organic layers were separated, dried with MgSO4, filtered, and concentrated to give the crude product. Column chromatography on silica gel 100% Hex. to 100% EtOAc afforded 9-bromo-6-{[(1R)-2-methyl-1-(trifluoromethyl)propyl]amino}benzo[c]-1,6-naphthyridin-1(2H)-one. 1H NMR (600 MHz, CD3OD) δ 10.1 (d, 1H), 8.31 (d, 1H), 7.75 (d, 1H), 7.40 (d, 1H), 6.65, (d, 1H), 5.46 (m, 1H), 2.35 (m, 1H), 1.12 (d, 3H), 1.06 (d, 3H). LRMS (ESI) calc'd for (C17H16BrF3N3O) [M+H]+, 414.0; found 414.0.

Workup

  1. temperatureThe reaction was cooled
  2. customquenched with sat. NaHCO3
  3. extractionThe mixture was extracted
  4. customthe organic layers were separated
  5. dry with materialdried with MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customto give the crude product

Sources & evidence

ORD record
ord-efe21f3b208d4767a03cff0712b273f6
Source dataset
uspto-grants-2012_12
Patent number
US08329722B2

Reaction notes

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