Morpholine → (R)-N-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)morpholine-4-carboxamide

HRID 537773Notes

Reaction equation

HRID 537773 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([F:8])=[CH:4][C:3]=1[C@H:9]1[CH2:13][CH2:12][CH2:11][N:10]1[C:14]1[CH:19]=[CH:18][N:17]2[N:20]=[CH:21][C:22]([NH2:23])=[C:16]2[N:15]=1.C1N=CN([C:29]([N:31]2[CH:35]=N[CH:33]=[CH:32]2)=[O:30])C=1.N1CC[O:39][CH2:38]C1>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([F:8])=[CH:4][C:3]=1[C@H:9]1[CH2:13][CH2:12][CH2:11][N:10]1[C:14]1[CH:19]=[CH:18][N:17]2[N:20]=[CH:21][C:22]([NH:23][C:29]([N:31]3[CH2:32][CH2:33][O:39][CH2:38][CH2:35]3)=[O:30])=[C:16]2[N:15]=1

Participants

5

Reactant 3

HCID 8083MorpholineHCID 682631,1'-CarbonyldiimidazoleHCID 58386314(R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine

Product 1

HCID 58386324(R)-N-(5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)morpholine-4-carboxamideYield 91%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a DCM (0.8 mL) solution of (R)-5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-amine (Preparation B; 30 mg, 0.095 mmol) was added CDI (31 mg, 0.19 mmol) at ambient temperature in one portion. After stirring two hours, morpholine (17 mg, 0.19 mmol) was added in one portion. The reaction was stirred for 5 minutes before it was concentrated and directly purified by reverse-phase column chromatography, eluting with 5 to 55% acetonitrile/water to yield the final product as a yellowish foamy powder (37 mg, 91% yield). MS (apci) m/z=429.2 (M+H).

Workup

  1. stirringThe reaction was stirred for 5 minutes before it
  2. concentrationwas concentrated
  3. customdirectly purified by reverse-phase column chromatography
  4. washeluting with 5 to 55% acetonitrile/water

Sources & evidence

ORD record
ord-f9ae41a910ce42a69bd691cbe004888d
Source dataset
uspto-grants-2014_10
Patent number
US08865698B2

Reaction notes

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