Sodium Carbonate → (5-(9-bromo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-2-yl)-1-isopropyl-1H-1,2,4-triazol-3-yl)methanol

HRID 886328Notes

Reaction equation

HRID 886328 reaction equation
[Br:1][C:2]1[CH:26]=[CH:25][C:5]2[C:6]3[N:10]([CH2:11][CH2:12][O:13][C:4]=2[CH:3]=1)[CH:9]=[C:8]([C:14]1[N:15]([CH:22]([CH3:24])[CH3:23])[N:16]=[C:17]([CH2:19][O:20]C)[N:18]=1)[N:7]=3.C(=O)([O-])[O-].[Na+].[Na+]>Br>[Br:1][C:2]1[CH:26]=[CH:25][C:5]2[C:6]3[N:10]([CH2:11][CH2:12][O:13][C:4]=2[CH:3]=1)[CH:9]=[C:8]([C:14]1[N:15]([CH:22]([CH3:24])[CH3:23])[N:16]=[C:17]([CH2:19][OH:20])[N:18]=1)[N:7]=3

Participants

4

Reactant 2

HCID 10340Sodium CarbonateHCID 582043878-Bromo-2-(2-isopropyl-5-methoxymethyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene

Product 1

HCID 58204744(5-(9-bromo-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-2-yl)-1-isopropyl-1H-1,2,4-triazol-3-yl)methanolYield 60%

Reagents, catalysts & solvents 1

HCID 260Hydrogen BromideSolvent

Procedure

A solution of 8-bromo-2-(2-isopropyl-5-methoxymethyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene 309 (280 mg, 0.67 mmol) in 48% aqueous HBr (4.19 mL) was heated at 100° C. for 4 h before cooling to RT. The solution was neutralized by the addition of 1M aqueous sodium carbonate and then extracted with DCM, the organic layer washed with water then dried (Na2SO4), filtered and concentrated in vacuo to give [5-(8-Bromo-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-2-yl)-1-isopropyl-1H-[1,2,4]triazol-3-yl]-methanol as a cream solid (162 mg, 60%). LCMS RT=4.74 min, [M+H]+=404. 1H NMR 400 MHz (DMSO-d) δ: 8.30 (1H, d, J=8.65 Hz), 7.91 (1H, s), 7.33 (1H, dd, J=8.65, 2.06 Hz), 7.27 (1H, d, J=2.03 Hz), 5.82-5.75 (1H, m), 5.18 (1H, t, J=6.03 Hz), 4.51 (4H, s), 4.40 (2H, d, J=5.99 Hz), 1.44 (6H, d, J=6.60 Hz)

Workup

  1. extractionextracted with DCM
  2. washthe organic layer washed with water
  3. dry with materialthen dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-78a1b1a2ddfe4dbeb37d532913382aaa
Source dataset
uspto-grants-2012_08
Patent number
US08242104B2

Reaction notes

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