Cesium carbonate → tert-butyl 3-(4-((4-((3S)-3-cyano-3-cyclopropyl-2-oxopyrrolidin-1-yl)pyrimidin-2-yl)amino)-1H-pyrazol-1-yl)azetidine-1-carboxylate

HRID 714847Notes

Reaction equation

HRID 714847 reaction equation
Cl[C:2]1[N:7]=[C:6]([N:8]2[CH2:12][CH2:11][C@:10]([CH:15]3[CH2:17][CH2:16]3)([C:13]#[N:14])[C:9]2=[O:18])[CH:5]=[CH:4][N:3]=1.[NH2:19][C:20]1[CH:21]=[N:22][N:23]([CH:25]2[CH2:28][N:27]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:26]2)[CH:24]=1.C(=O)([O-])[O-].[Cs+].[Cs+].C1(P(C2C=CC=CC=2)C2C=CC3C(=CC=CC=3)C=2C2C3C(=CC=CC=3)C=CC=2P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>O1CCCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:13]([C@@:10]1([CH:15]2[CH2:17][CH2:16]2)[CH2:11][CH2:12][N:8]([C:6]2[CH:5]=[CH:4][N:3]=[C:2]([NH:19][C:20]3[CH:21]=[N:22][N:23]([CH:25]4[CH2:28][N:27]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[CH2:26]4)[CH:24]=3)[N:7]=2)[C:9]1=[O:18])#[N:14]

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 272815264-Amino-1-(1-Boc-azetidin-3-yl)-1H-pyrazoleHCID 117840203(3S)-1-(2-chloropyrimidin-4-yl)-3-cyclopropyl-2-oxopyrrolidine-3-carbonitrile

Product 1

HCID 117840549tert-butyl 3-(4-((4-((3S)-3-cyano-3-cyclopropyl-2-oxopyrrolidin-1-yl)pyrimidin-2-yl)amino)-1H-pyrazol-1-yl)azetidine-1-carboxylateYield 58.4%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 8028TetrahydrofuranSolvent

Conditions

Temperature
90 °C

Procedure

To a solution of (3S)-1-(2-chloropyrimidin-4-yl)-3-cyclopropyl-2-oxopyrrolidine-3-carbonitrile (300 mg) obtained in Step E of Example 103, tert-butyl 3-(4-amino-1H-pyrazol-1-yl)azetidine-1-carboxylate (300 mg) obtained in Step B of Example 131, cesium carbonate (740 mg) and 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (110 mg) in tetrahydrofuran (10 mL) was added tris(dibenzylideneacetone)dipalladium(0) (105 mg), and the mixture was stirred at 90° C. for 10 hr under argon atmosphere. The solvent was evaporated under reduced pressure, and the reaction mixture was poured into water, and extracted with ethyl acetate. The obtained organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (NH, hexane/ethyl acetate) to give the title compound (310 mg).

Workup

  1. customThe solvent was evaporated under reduced pressure
  2. additionthe reaction mixture was poured into water
  3. extractionextracted with ethyl acetate
  4. washThe obtained organic layer was washed with saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated under reduced pressure
  7. customThe residue was purified by silica gel column chromatography (NH, hexane/ethyl acetate)

Sources & evidence

ORD record
ord-fb088cb851b34b9b9864bafadac9cc0c
Source dataset
uspto-grants-2015_11
Patent number
US09187453B2

Reaction notes

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