Potassium Phosphate, Tribasic → 8-({[Tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-{1-[4-(1-methyl-1H-imidazol-4-yl)phenyl]cyclopropyl}-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine

HRID 1424086Notes

Reaction equation

HRID 1424086 reaction equation
[Si:1]([O:8][CH2:9][C:10]1([CH3:38])[S:16][CH2:15][CH2:14][N:13]2[C:17]([C:20]3([C:23]4[CH:28]=[CH:27][C:26](B5OC(C)(C)C(C)(C)O5)=[CH:25][CH:24]=4)[CH2:22][CH2:21]3)=[N:18][N:19]=[C:12]2[CH2:11]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].I[C:40]1[N:41]=[CH:42][N:43]([CH3:45])[CH:44]=1.C1(P(C2CCCCC2)C2CCCCC2)CCCCC1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].C(=O)([O-])O.[Na+]>O1CCOCC1.O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Si:1]([O:8][CH2:9][C:10]1([CH3:38])[S:16][CH2:15][CH2:14][N:13]2[C:17]([C:20]3([C:23]4[CH:24]=[CH:25][C:26]([C:40]5[N:41]=[CH:42][N:43]([CH3:45])[CH:44]=5)=[CH:27][CH:28]=4)[CH2:21][CH2:22]3)=[N:18][N:19]=[C:12]2[CH2:11]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

Participants

9

Reactant 5

HCID 62657Potassium Phosphate, TribasicHCID 75806TricyclohexylphosphineHCID 516892Sodium BicarbonateHCID 27734634-Iodo-1-methyl-1H-imidazoleHCID 867128608-({[Tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-{1-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]cyclopropyl}-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepine

Product 1

HCID 867129348-({[Tert-butyl(dimethyl)silyl]oxy}methyl)-8-methyl-3-{1-[4-(1-methyl-1H-imidazol-4-yl)phenyl]cyclopropyl}-5,6,8,9-tetrahydro[1,2,4]triazolo[4,3-d][1,4]thiazepineYield 29%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

A solution of the compound (555 mg, 1.0 mmol) obtained in Example 16-5), 4-iodo-1-methyl-1H-imidazole (312 mg, 1.5 mmol), tris(dibenzylideneacetone)dipalladium(0) (46 mg, 0.05 mmol), tricyclohexylphosphine (34 mg, 0.12 mmol), and tripotassium phosphate (372 mg, 1.7 mmol) in dioxane (4 mL) and water (1 mL) was stirred at 130° C. for 1.5 h under microwave irradiation. The reaction mixture was cooled to room temperature, saturated aqueous sodium hydrogencarbonate was added to the reaction mixture, the mixture was extracted with dichloromethane, and the organic layer was washed with saturated sodium chloride solution and dried with anhydrous sodium sulfate. After filtration, the filtrate was concentrated under reduced pressure, and the residue was purified by silica gel chromatography (Isco Combiflash, 12 g, methanol:ethyl acetate=0:100 to 20:80, gradient) to obtain the title compound (148 mg, 29%) as a brown solid.

Workup

  1. extractionthe mixture was extracted with dichloromethane
  2. washthe organic layer was washed with saturated sodium chloride solution
  3. dry with materialdried with anhydrous sodium sulfate
  4. filtrationAfter filtration
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customthe residue was purified by silica gel chromatography (Isco Combiflash, 12 g, methanol:ethyl acetate=0:100 to 20:80, gradient)

Sources & evidence

ORD record
ord-952dba9fcf63408a8decf673050195f3
Source dataset
uspto-grants-2015_01
Patent number
US08927536B2

Reaction notes

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