Diisopropylethylamine → (S)-tert-butyl 3-(2-chloro-5-fluoropyrimidin-4-ylamino)pyrrolidine-1-carboxylate

HRID 526896

Reaction equation

HRID 526896 reaction equation
[Cl:1][C:2]1[N:7]=[C:6](Cl)[C:5]([F:9])=[CH:4][N:3]=1.CCN(C(C)C)C(C)C.[NH2:19][C@H:20]1[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21]1>C1COCC1>[Cl:1][C:2]1[N:7]=[C:6]([NH:19][C@H:20]2[CH2:24][CH2:23][N:22]([C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:21]2)[C:5]([F:9])=[CH:4][N:3]=1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 2507052,4-Dichloro-5-fluoropyrimidineHCID 854071tert-butyl (3S)-3-aminopyrrolidine-1-carboxylate

Product 1

HCID 86667413(S)-tert-butyl 3-(2-chloro-5-fluoropyrimidin-4-ylamino)pyrrolidine-1-carboxylateYield 102.7%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a mixture of 2,4-dichloro-5-fluoro-pyrimidine (1.75 g, 10.48 mmol) and iPr2NEt (3.27 mL, 18.78 mmol) in THF (50 mL) was added tert-butyl (3S)-3-aminopyrrolidine-1-carboxylate (1.83 mL, 10.48 mmol) in THF (2 mL). The resulting solution was allowed to stir at room temperature for 2 hours. The mixture was concentrated to dryness, diluted with dichloromethane and washed with water. The organic layer was dried over Na2SO4 and concentrated in vacuo to afford 3.41 g of 7a, as a white foamy solid.

Workup

  1. concentrationThe mixture was concentrated to dryness
  2. additiondiluted with dichloromethane
  3. washwashed with water
  4. dry with materialThe organic layer was dried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-3e75715202f3455289ef3294b0c6a79b
Source dataset
uspto-grants-2016_05
Patent number
US09345708B2

Linked notes

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