Dichloromethane → HCID 58204712, compound

HRID 1629307Notes

Reaction equation

HRID 1629307 reaction equation
Br[C:2]1[CH:24]=[CH:23][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:20]([CH3:22])[CH3:21])[N:16]=[C:17]([CH3:19])[N:18]=1)[N:7]=3.[C:25]([O:29][C:30]([N:32]1[CH2:37][CH:36]=[C:35](B2OC(C)(C)C(C)(C)O2)[CH2:34][CH2:33]1)=[O:31])([CH3:28])([CH3:27])[CH3:26].C(Cl)Cl.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.C(OCC)(=O)C.O>[C:25]([O:29][C:30]([N:32]1[CH2:33][CH:34]=[C:35]([C:2]2[CH:24]=[CH:23][C:5]3[C:6]4[N:10]([CH2:11][CH2:12][O:13][C:4]=3[CH:3]=2)[CH:9]=[C:8]([C:14]2[N:15]([CH:20]([CH3:22])[CH3:21])[N:16]=[C:17]([CH3:19])[N:18]=2)[N:7]=4)[CH2:36][CH2:37]1)=[O:31])([CH3:28])([CH3:26])[CH3:27]

Participants

8

Reactant 4

HCID 6344DichloromethaneHCID 11430Potassium CarbonateHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 582043229-Bromo-2-(1-isopropyl-3-methyl-1H-1,2,4-triazol-5-yl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine

Product 1

HCID 58204712HCID 58204712, compoundYield 99%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
90 °C

Procedure

A suspension of 8-bromo-2-(2-isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene (1.2 g, 3.09 mmol), 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester (1.8 g, 5.82 mmol), PdCl2dppf.DCM (339 mg, 0.46 mmol) and potassium carbonate (1.9 g, 13.9 mmol) in DMF (10 mL) was degassed and then heated at 90° C. under an atmosphere of nitrogen for 1.5 h. The cooled reaction mixture was diluted with ethyl acetate and water, the aqueous extracted with ethyl acetate and combined organic extracts dried (Na2SO4), filtered and concentrated in vacuo. The resultant residue was subjected to flash chromatography (SiO2, gradient 0 to 100% ethyl acetate in cyclohexane, 1% TEA in final eluent) to give 4-[2-(2-Isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulen-8-yl]-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester as a tan foam (1.5 g, 99%). LCMS: RT=3.77 min, [M+H]+=491

Workup

  1. customThe cooled reaction mixture
  2. extractionthe aqueous extracted with ethyl acetate
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-b7259a58a5954247ac7c783d5e56c801
Source dataset
uspto-grants-2014_07
Patent number
US08785626B2

Reaction notes

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