Cesium carbonate → {1-[({7-[(3-Cyano-2,6-difluorobenzyl)oxy]-2,5-dimethylpyrazolo[1,5-a]pyridin-3-yl}carbonyl)amino]-2-methylpentan-2-yl}carbamic Acid tert-butyl Ester

HRID 1486293Notes

Reaction equation

HRID 1486293 reaction equation
[C:1]([O:5][C:6](=[O:29])[NH:7][C:8]([CH3:28])([CH2:25][CH2:26][CH3:27])[CH2:9][NH:10][C:11]([C:13]1[C:14]([CH3:24])=[N:15][N:16]2[C:21]([OH:22])=[CH:20][C:19]([CH3:23])=[CH:18][C:17]=12)=[O:12])([CH3:4])([CH3:3])[CH3:2].Cl[CH2:31][C:32]1[C:33]([F:41])=[C:34]([CH:37]=[CH:38][C:39]=1[F:40])[C:35]#[N:36].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C.ClCCl>[C:1]([O:5][C:6](=[O:29])[NH:7][C:8]([CH3:28])([CH2:25][CH2:26][CH3:27])[CH2:9][NH:10][C:11]([C:13]1[C:14]([CH3:24])=[N:15][N:16]2[C:21]([O:22][CH2:31][C:32]3[C:39]([F:40])=[CH:38][CH:37]=[C:34]([C:35]#[N:36])[C:33]=3[F:41])=[CH:20][C:19]([CH3:23])=[CH:18][C:17]=12)=[O:12])([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 117858266HCID 117858266, compoundHCID 178444850HCID 178444850, compound

Product 1

HCID 117864620{1-[({7-[(3-Cyano-2,6-difluorobenzyl)oxy]-2,5-dimethylpyrazolo[1,5-a]pyridin-3-yl}carbonyl)amino]-2-methylpentan-2-yl}carbamic Acid tert-butyl Ester

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Procedure

A solution of 80 mg (0.20 mmol) of rac-(1-{[(7-hydroxy-2,5-dimethylpyrazolo[1,5-a]pyridin-3-yl)carbonyl]amino}-2-methylpentan-2-yl)carbamic acid tert-butyl ester from Example 141A and 56 mg (0.27 mmol) of 3-(chloromethyl)-2,4-difluorobenzonitrile from Example 135A in 3 ml of DMF was admixed with 129 mg (0.396 mmol) of caesium carbonate. The resulting suspension was stirred at RT for 72 h and then diluted with dichloromethane (15 ml) and extracted with saturated aqueous sodium hydrogencarbonate solution (10 ml). The organic phase was concentrated under reduced pressure, which gave a crude product that contained the target compound in a multicomponent mixture (20% pure). This crude material was used in the next step without further purification.

Workup

  1. extractionextracted with saturated aqueous sodium hydrogencarbonate solution (10 ml)
  2. concentrationThe organic phase was concentrated under reduced pressure, which

Sources & evidence

ORD record
ord-b3e065bda7a94473b13e4415a9b255cd
Source dataset
uspto-grants-2016_08
Patent number
US09422285B2

Reaction notes

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