Diisopropylethylamine → (R)-(5-(2-(5-fluoropyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)(3-methoxyazetidin-1-yl)methanone

HRID 1631376Notes

Reaction equation

HRID 1631376 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([C@H:8]2[CH2:12][CH2:11][CH2:10][N:9]2[C:13]2[CH:18]=[CH:17][N:16]3[N:19]=[CH:20][C:21]([C:22]([OH:24])=O)=[C:15]3[N:14]=2)[CH:5]=[N:6][CH:7]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.FC(F)(F)C(O)=O.[CH3:56][O:57][CH:58]1[CH2:61][NH:60][CH2:59]1.CCN(C(C)C)C(C)C>CN(C=O)C>[F:1][C:2]1[CH:3]=[C:4]([C@H:8]2[CH2:12][CH2:11][CH2:10][N:9]2[C:13]2[CH:18]=[CH:17][N:16]3[N:19]=[CH:20][C:21]([C:22]([N:60]4[CH2:61][CH:58]([O:57][CH3:56])[CH2:59]4)=[O:24])=[C:15]3[N:14]=2)[CH:5]=[N:6][CH:7]=1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 668477743-Methoxyazetidine 2,2,2-trifluoroacetateHCID 66847898HCID 66847898, compound

Product 1

HCID 67501882(R)-(5-(2-(5-fluoropyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)(3-methoxyazetidin-1-yl)methanoneYield 69%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a DMF (0.3 mL) solution of (R)-5-(2-(5-fluoropyridin-3-yl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (Preparation I, 30 mg, 0.092 mmol) and HATU (42 mg, 0.11 mmol) was added 3-methoxyazetidine 2,2,2-trifluoroacetate (22 mg, 0.11 mmol), followed by dropwise addition of DIEA (0.048 mL, 0.27 mmol). After stirring for 30 minutes at ambient temperature, the reaction was directly purified by reverse-phase chromatography (5 to 50% acetonitrile/water) to yield the final product as white solid (25 mg, 69%). LCMS (apci) m/z=397.1 (M+H).

Workup

  1. customthe reaction was directly purified by reverse-phase chromatography (5 to 50% acetonitrile/water)

Sources & evidence

ORD record
ord-68b845ecdfd1456abbe7030990090738
Source dataset
uspto-grants-2014_07
Patent number
US08791123B2

Reaction notes

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