Hydrochloric Acid → 2-[5-bromo-2-(1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-7-ylamino)-pyrimidin-4-ylamino]-N-methyl-benzamide

HRID 1687022Notes

Reaction equation

HRID 1687022 reaction equation
Cl[C:2]1[N:7]=[C:6]([NH:8][C:9]2[CH:18]=[CH:17][CH:16]=[CH:15][C:10]=2[C:11]([NH:13][CH3:14])=[O:12])[C:5]([Br:19])=[CH:4][N:3]=1.[NH2:20][C:21]1[CH:33]=[CH:32][C:24]2[N:25]([CH3:31])[C:26](=[O:30])[CH2:27][CH2:28][CH2:29][C:23]=2[CH:22]=1.Cl>C(O)CCC.O1CCOCC1>[Br:19][C:5]1[C:6]([NH:8][C:9]2[CH:18]=[CH:17][CH:16]=[CH:15][C:10]=2[C:11]([NH:13][CH3:14])=[O:12])=[N:7][C:2]([NH:20][C:21]2[CH:33]=[CH:32][C:24]3[N:25]([CH3:31])[C:26](=[O:30])[CH2:27][CH2:28][CH2:29][C:23]=3[CH:22]=2)=[N:3][CH:4]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 197602587-Amino-1-methyl-1,3,4,5-tetrahydro-benzo[B]azepin-2-oneHCID 587484682-(5-Bromo-2-chloro-pyrimidin-4-ylamino)-N-methyl-benzamide

Product 1

HCID 672637842-[5-bromo-2-(1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-7-ylamino)-pyrimidin-4-ylamino]-N-methyl-benzamideYield 48.4%

Reagents, catalysts & solvents 2

HCID 2631-ButanolSolventHCID 312751,4-DioxaneSolvent

Procedure

2-(2-chloro-5-bromo-pyrimidin-4-ylamino)-N-methyl-benzamide (52 mg, 0.15 mmol) and 7-amino-1-methyl-1,3,4,5-tetrahydrobenzo[b]azepin-2-one (29 mg, 0.15 mmol) were combined in 5 mL n-butanol. A drop of a solution of 4N hydrochloric acid in dioxane was added and the mixture was refluxed for five hours. The mixture was concentrated and triturated with ether. The remaining solid was partitioned between dichloromethane and saturated sodium bicarbonate solution (100 mL each). The organic layer was separated, was dried (sodium sulfate), and was concentrated to afford an oil which was purified on silica (methanol:dichloromethane gradient elution) to afford 36 mg (48%) of 2-[5-bromo-2-(1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-7-ylamino)-pyrimidin-4-ylamino]-N-methyl-benzamide as an off-white solid. Mp: 238-40° C.; MS: 496.61 (M+H); 1H NMR (chloroform-d): δ 10.95 (s, 1H), δ 8.58 (d, J=8 Hz, 1H), δ 8.22 (s, 1H), δ 7.52 (d, J=8 Hz, 1H), δ 7.44 (m, 3H), δ 7.11 (t, J=8 Hz, 1H), δ 7.01 (s, 1H), δ 6.25 (br s, 1H), δ 3.35 (s, 3H), δ 3.06 (s, 3H), δ 2.67 (m, 2H), δ 2.33 (t, J=7 Hz, 2H), δ 2.16 (m, 2H).

Workup

  1. temperaturethe mixture was refluxed for five hours
  2. concentrationThe mixture was concentrated
  3. customtriturated with ether
  4. customThe remaining solid was partitioned between dichloromethane and saturated sodium bicarbonate solution (100 mL each)
  5. customThe organic layer was separated
  6. dry with materialwas dried (sodium sulfate)
  7. concentrationwas concentrated
  8. customto afford an oil which
  9. customwas purified on silica (methanol:dichloromethane gradient elution)

Sources & evidence

ORD record
ord-39115210fbfc47f98aa68e85769802ec
Source dataset
uspto-grants-2012_04
Patent number
US08148391B2

Reaction notes

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