Hydrochloric Acid → 1-(5-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-imidazol-2-yl)-2-methylpropan-2-ol

HRID 886294Notes

Reaction equation

HRID 886294 reaction equation
[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[N:11]([CH2:12][CH2:13][O:14][C:15]4[CH:22]=[C:21]([C:23]5[N:24]=[C:25]([CH2:34][C:35]([CH3:38])([OH:37])[CH3:36])[N:26](C6CCCCO6)[CH:27]=5)[CH:20]=[CH:19][C:16]=43)[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2].Cl.CO>CCO>[CH:1]([N:4]1[C:8]([C:9]2[N:18]=[C:17]3[C:16]4[CH:19]=[CH:20][C:21]([C:23]5[NH:24][C:25]([CH2:34][C:35]([CH3:38])([OH:37])[CH3:36])=[N:26][CH:27]=5)=[CH:22][C:15]=4[O:14][CH2:13][CH2:12][N:11]3[CH:10]=2)=[N:7][CH:6]=[N:5]1)([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 887MethanolHCID 582048951-[4-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-1-(tetrahydro-pyran-2-yl)-1H-imidazol-2-yl]-2-methyl-propan-2-ol

Product 1

HCID 582042851-(5-(2-(1-isopropyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepin-9-yl)-1H-imidazol-2-yl)-2-methylpropan-2-olYield 12%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 1-[4-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-1-(tetrahydro-pyran-2-yl)-1H-imidazol-2-yl]-2-methyl-propan-2-ol (735 mg, 1.42 mmol) in EtOH (15 mL) was added a solution of hydrogen chloride in MeOH (7.1 mL, 28.4 mmol). The reaction mixture was heated at reflux for 5 h, cooled to r.t. and concentrated. Saturated NaHCO3 solution was added slowly and the reaction mixture was extracted with EtOAc. The combined organic layer was dried over Na2SO4, filtered and concentrated. The crude product was purified by prep-TLC (DCM:MeOH=8:1) to give 290 as a yellow solid (74 mg, 12%). 1H NMR (CDCl3, 400 MHz): δ 8.44 (d, J=8.4 Hz, 1H), 7.89 (s, 1H), 7.58 (s, 1H), 7.43-7.36 (m, 2H), 7.28 (s, 1H), 5.95-5.91 (m, 1H), 4.45-4.02 (m, 4H), 2.97 (s, 2H), 1.60 (d, J=6.8 Hz, 6H), 1.30 (s, 6H). MS: (ESI, m/z)=434 [M+H]+.

Workup

  1. temperatureThe reaction mixture was heated
  2. temperatureat reflux for 5 h
  3. concentrationconcentrated
  4. additionSaturated NaHCO3 solution was added slowly
  5. extractionthe reaction mixture was extracted with EtOAc
  6. dry with materialThe combined organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe crude product was purified by prep-TLC (DCM:MeOH=8:1)

Sources & evidence

ORD record
ord-2c63b4d05dad4c8a92131b69af1143e7
Source dataset
uspto-grants-2012_08
Patent number
US08242104B2

Reaction notes

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