1,4-Dioxane → HCID 178425143, compound

HRID 1522369Notes

Reaction equation

HRID 1522369 reaction equation
Cl[C:2]1[CH:3]=[C:4]([C:14]([NH:16][CH2:17][C:18]2[C:19](=[O:26])[NH:20][C:21]([CH3:25])=[CH:22][C:23]=2[CH3:24])=[O:15])[C:5]2[CH:10]=[N:9][N:8]([CH:11]([CH3:13])[CH3:12])[C:6]=2[N:7]=1.[CH3:27][C:28]1[C:36]2[C:31](=[CH:32][CH:33]=[C:34](B3OC(C)(C)C(C)(C)O3)[CH:35]=2)[N:30](C(OC(C)(C)C)=O)[N:29]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].O1CCOCC1>CCOC(C)=O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].C(Cl)Cl.O>[CH3:24][C:23]1[CH:22]=[C:21]([CH3:25])[NH:20][C:19](=[O:26])[C:18]=1[CH2:17][NH:16][C:14]([C:4]1[C:5]2[CH:10]=[N:9][N:8]([CH:11]([CH3:13])[CH3:12])[C:6]=2[N:7]=[C:2]([C:34]2[CH:35]=[C:36]3[C:31](=[CH:32][CH:33]=2)[NH:30][N:29]=[C:28]3[CH3:27])[CH:3]=1)=[O:15]

Participants

8

Reactant 4

HCID 312751,4-DioxaneHCID 62657Potassium Phosphate, TribasicHCID 565974256-Chloro-N-[(4,6-dimethyl-2-oxo-1,2-dihydro-3-pyridinyl)methyl]-1-(1-methylethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamideHCID 57415707tert-Butyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate

Product 1

HCID 178425143HCID 178425143, compound

Reagents, catalysts & solvents 3

HCID 178418807HCID 178418807, compoundCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
105 °C

Procedure

To a 10 mL microwave vial were sequentially added 6-chloro-N-[(4,6-dimethyl-2-oxo-1,2-dihydro-3-pyridinyl)methyl]-1-(1-methylethyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxamide (0.12 g, 0.321 mmol), 1,1-dimethylethyl 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole-1-carboxylate (0.138 g, 0.385 mmol), potassium phosphate (tribasic) (0.204 g, 0.963 mmol), 1,4-dioxane (3 mL), and water (0.75 mL). The stirring suspension was degassed with nitrogen for 10 min., wherein an emulsion had formed. Next added PdCl2(dppf)-CH2Cl2 adduct (0.039 g, 0.048 mmol) and the contents were placed onto a heat block and stirred at 105° C. overnight. After cooling to room temperature, the reaction mixture was diluted with EtOAc and filtered through Celite. The filter pad was washed with 50% THF/EtOAc. Silica gel was added to the combined filtrates and the mixture concentrated in vacuo to a solid. The contents were purified by silica gel chromatography (dry loaded, eluent: 5-80% gradient of DCM and chloroform containing 10% 2M Ammonia (in methanol)). The isolated solid was dried in vacuum oven at 45° C. overnight to afford the final product as 0.126 g (81%). LCMS E-S (M+H)=470.3. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.56 (d, J=6.57 Hz, 6 H), 2.13 (s, 3 H), 2.25 (s, 3 H), 2.60 (s, 3 H), 4.43 (d, J=5.05 Hz, 2 H), 5.31-5.43 (m, 1 H), 5.91 (s, 1 H), 7.60 (d, J=8.84 Hz, 1 H), 8.22 (s, 1 H), 8.29-8.37 (m, 2 H), 8.60 (s, 1 H), 8.97 (t, J=5.05 Hz, 1 H), 11.58 (br. s., 1 H), 12.84 (s, 1 H).

Workup

  1. customThe stirring suspension was degassed with nitrogen for 10 min.
  2. customwherein an emulsion had formed
  3. temperatureAfter cooling to room temperature
  4. filtrationfiltered through Celite
  5. washThe filter pad was washed with 50% THF/EtOAc
  6. additionSilica gel was added to the combined filtrates
  7. concentrationthe mixture concentrated in vacuo to a solid
  8. customThe contents were purified by silica gel chromatography (dry loaded, eluent: 5-80% gradient of DCM and chloroform containing 10% 2M Ammonia (in methanol))
  9. customThe isolated solid was dried in vacuum oven at 45° C. overnight

Sources & evidence

ORD record
ord-a9e9d61abb6c45368e9ffd4dbf52d1da
Source dataset
uspto-grants-2015_07
Patent number
US09073924B2

Reaction notes

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