Water → 1-(1-Methylethyl)-N-[6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-indazol-4-yl]-1H-pyrazole-5-carboxamide
Reaction equation
P([O-])([O-])([O-])=O.[K+].[K+].[K+].Cl[C:10]1[N:15]=[CH:14][NH:13][C:12]2=[N:16][CH:17]=[CH:18][C:11]=12.[CH3:19][CH:20]([N:22]1[C:26]([C:27]([NH:29][C:30]2[C:31]3[C:35]([CH:36]=[C:37](B4OC(C)(C)CC(C)(C)O4)[CH:38]=2)=[N:34][N:33](C2CCCCO2)[CH:32]=3)=[O:28])=[CH:25][CH:24]=[N:23]1)[CH3:21].O>O1CCOCC1.CO>[CH3:21][CH:20]([N:22]1[C:26]([C:27]([NH:29][C:30]2[CH:38]=[C:37]([C:10]3[C:11]4[CH:18]=[CH:17][NH:16][C:12]=4[N:13]=[CH:14][N:15]=3)[CH:36]=[C:35]3[C:31]=2[CH:32]=[N:33][NH:34]3)=[O:28])=[CH:25][CH:24]=[N:23]1)[CH3:19]Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 120 °C
Procedure
A microwave vial was charged with Solvias catalyst (8 mg), tripotassium phosphate (90 mg) and 4-chloro-1H-pyrrolo[2,3-d]pyrimidine (available from ABCR, 24 mg). 1-(1-Methylethyl)-N-[2-(tetrahydro-2H-pyran-2-yl)-6-(4,4,6,6-tetramethyl-1,3,2-dioxaborinan-2-yl)-2H-indazol-4-yl]-1H-pyrazole-5-carboxamide (70 mg) in 1,4-dioxane (0.5 ml) was added followed by water (0.1 ml). The reaction was heated under microwave irradiation at 120° C. for 10 min. Solvias catalyst (8 mg) was added and the reaction heated under microwave irradiation at 120° C. for 10 min. Further Solvias catalyst (8 mg) and tripotassium phosphate (30 mg) were added and the reaction was heated under microwave irradiation at 120° C. for 30 min. Again further Solvias catalyst (8 mg) and tripotassium phosphate (90 mg) were added and the reaction was heated under microwave irradiation at 120° C. for 30 min. 4-Chloro-1H-pyrrolo[2,3-d]pyrimidine (12 mg) was added and the reaction was heated under microwave irradiation at 120° C. for 30 min. Addition of catalyst and base was repeated and the reaction was heated under microwave irradiation at 120° C. for 30 min. The reaction was passed through a silica cartridge preconditioned with methanol, washing with methanol, then dried under a stream of nitrogen. The residue was subjected to a DCM/water wash and then dried under a stream of nitrogen. The residue was dissolved in DMSO:methanol (1 ml, 1:1, v/v) and purified by MDAP (method A). The appropriate fraction was evaporated under a stream of nitrogen. The residue was dissolved in methanol, a few drops of 2M HCl (aq) were added and the mixture was left to stand briefly at room temperature, then evaporated under a stream of nitrogen. Sequential purification was carried out using the following system and the two gradients shown:
Workup
- temperaturethe reaction heated under microwave irradiation at 120° C. for 10 min
- temperaturethe reaction was heated under microwave irradiation at 120° C. for 30 min
- temperaturethe reaction was heated under microwave irradiation at 120° C. for 30 min
- temperaturethe reaction was heated under microwave irradiation at 120° C. for 30 min
- additionAddition of catalyst and base
- temperaturethe reaction was heated under microwave irradiation at 120° C. for 30 min
- washwashing with methanol
- customdried under a stream of nitrogen
- washwash
- customdried under a stream of nitrogen
- dissolutionThe residue was dissolved in DMSO
- custommethanol (1 ml, 1:1, v/v) and purified by MDAP (method A)
- customThe appropriate fraction was evaporated under a stream of nitrogen
- dissolutionThe residue was dissolved in methanol
- additiona few drops of 2M HCl (aq) were added
- waitthe mixture was left
- customto stand briefly at room temperature
- customevaporated under a stream of nitrogen
- customSequential purification
Sources & evidence
- ORD record
- ord-7fa49a1f4fb14ad6874954bfab70a2ac
- Source dataset
- uspto-grants-2014_02
- Patent number
- US08658635B2
Reaction notes
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