Methanol → 2-(4-(2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-pyrazol-1-yl)-2-methylpropanoic acid

HRID 2044441Notes

Reaction equation

HRID 2044441 reaction equation
[CH:1]([N:4]1[C:8]([C:9]2[N:10]=[C:11]3[C:17]4[CH:18]=[CH:19][C:20]([C:22]5[CH:23]=[N:24][N:25]([C:27]([CH3:33])([CH3:32])[C:28]([O:30]C)=[O:29])[CH:26]=5)=[CH:21][C:16]=4[O:15][CH2:14][CH2:13][N:12]3[CH:34]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2].[OH-].[Li+].[CH3:37]O>O>[CH:1]([N:4]1[C:8]([C:9]2[N:10]=[C:11]3[C:17]4[CH:18]=[CH:19][C:20]([C:22]5[CH:23]=[N:24][N:25]([C:27]([CH3:32])([CH3:33])[C:28]([OH:30])=[O:29])[CH:26]=5)=[CH:21][C:16]=4[O:15][CH2:14][CH2:13][N:12]3[CH:34]=2)=[N:7][C:6]([CH3:37])=[N:5]1)([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 887MethanolHCID 3939Lithium HydroxideHCID 67050726methyl 2-(4-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-pyrazol-1-yl)-2-methylpropanoate

Product 1

HCID 582043942-(4-(2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-pyrazol-1-yl)-2-methylpropanoic acid

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

The mixture of methyl 2-(4-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-pyrazol-1-yl)-2-methylpropanoate and corresponding acid (100 mg, 0.22 mmol) was treated with 1 M of lithium hydroxide in water (2 mL) and methanol (0.37 mL). The reaction was stirred at room temp for 12 h. Acidified by 10% aqueous citric acid to pH=5 and extracted with EtOAc twice. The combined organic layers were washed with brine, dried and concentrated to give 2-(4-(2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-pyrazol-1-yl)-2-methylpropanoic acid 216. 1H NMR (400 MHz, DMSO) δ 8.44 (s, 1H), 8.39 (s, OH), 8.37 (s, 1H), 7.98 (s, 1H), 7.92 (s, 2H), 7.45 (dd, J=8.4, 1.8, 1H), 7.36 (d, J=1.7, 1H), 5.90 (dt, J=13.2, 6.6, 1H), 4.53 (q, J=6.0, 4H), 1.72 (d, J=42.8, 6H), 1.50 (d, J=6.6, 6H).

Workup

  1. extractionAcidified by 10% aqueous citric acid to pH=5 and extracted with EtOAc twice
  2. washThe combined organic layers were washed with brine
  3. customdried
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-62b6fb8df696488587f5d558a0eee74e
Source dataset
uspto-grants-2013_11
Patent number
US08586574B2

Reaction notes

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