Water → 4-(6-amino-5-(1-isopropyl-1H-1,2,3-triazol-4-yl)pyridin-3-yl)-2-methoxybenzoic acid

HRID 632474Notes

Reaction equation

HRID 632474 reaction equation
Br[C:2]1[CH:3]=[C:4]([C:9]2[N:10]=[N:11][N:12]([CH:14]([CH3:16])[CH3:15])[CH:13]=2)[C:5]([NH2:8])=[N:6][CH:7]=1.[CH3:17][O:18][C:19]1[CH:20]=[C:21](B(O)O)[CH:22]=[CH:23][C:24]=1[C:25]([O:27]C)=[O:26].O.C([O-])([O-])=O.[Cs+].[Cs+]>O1CCOCC1.CCOC(C)=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:8][C:5]1[N:6]=[CH:7][C:2]([C:21]2[CH:22]=[CH:23][C:24]([C:25]([OH:27])=[O:26])=[C:19]([O:18][CH3:17])[CH:20]=2)=[CH:3][C:4]=1[C:9]1[N:10]=[N:11][N:12]([CH:14]([CH3:16])[CH3:15])[CH:13]=1

Participants

8

Reactant 4

HCID 962WaterHCID 10796Cesium carbonateHCID 177502563-Methoxy-4-(methoxycarbonyl)benzeneboronic acidHCID 902731555-bromo-3-(1-isopropyl-1H-[1,2,3]triazol-4-yl)-pyridin-2-ylamine

Product 1

HCID 902733904-(6-amino-5-(1-isopropyl-1H-1,2,3-triazol-4-yl)pyridin-3-yl)-2-methoxybenzoic acidYield 69.4%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 8857Ethyl AcetateSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 5-bromo-3-(1-isopropyl-1H-[1,2,3]triazol-4-yl)-pyridin-2-ylamine (300 mg, 1.06 mmol) and (3-methoxy-4-(methoxycarbonyl)phenyl)boronic acid (245 mg, 1.16 mmol) in 1,4-dioxane (10.0 mL)/water (5.0 mL) was added Cs2CO3 (1.0 g, 3.18 mmol) at room temperature. The reaction mixture was degassed with argon for 30 min. Then Pd(PPh3)4 (61 mg, 0.05 mmol) was added and allowed to stir at 120° C. for 30 min in CEM micro wave. The reaction mixture was cooled to RT, diluted with EtOAc (50 mL) and washed with water (50 mL). The aqueous layer was neutralized with 1N HCl, extracted with DCM (2×50 mL), washed with brine solution (20 mL), dried over anhydrous Na2SO4 and solvent was evaporated under reduced pressure. The crude compound was washed with diethyl ether to afford 260 mg (yield: 69.33%) of the title compound as pale yellow solid.

Workup

  1. customThe reaction mixture was degassed with argon for 30 min
  2. temperatureThe reaction mixture was cooled to RT
  3. washwashed with water (50 mL)
  4. extractionextracted with DCM (2×50 mL)
  5. washwashed with brine solution (20 mL)
  6. dry with materialdried over anhydrous Na2SO4 and solvent
  7. customwas evaporated under reduced pressure
  8. washThe crude compound was washed with diethyl ether

Sources & evidence

ORD record
ord-c858e98a0f474f01ae24c01ec7a10312
Source dataset
uspto-grants-2016_04
Patent number
US09321748B2

Reaction notes

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