Potassium Carbonate → Ethyl 3-((2-chloro-5-nitropyrimidin-4-yl)(cyclopentyl)amino)-2-fluoro-2-methylpropanoate

HRID 1880916노트

반응식

HRID 1880916 반응식
[Cl:1][C:2]1[N:7]=[C:6](Cl)[C:5]([N+:9]([O-:11])=[O:10])=[CH:4][N:3]=1.[CH:12]1([NH:17][CH2:18][C:19]([F:26])([CH3:25])[C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH2:16][CH2:15][CH2:14][CH2:13]1.C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[Cl:1][C:2]1[N:7]=[C:6]([N:17]([CH:12]2[CH2:13][CH2:14][CH2:15][CH2:16]2)[CH2:18][C:19]([F:26])([CH3:25])[C:20]([O:22][CH2:23][CH3:24])=[O:21])[C:5]([N+:9]([O-:11])=[O:10])=[CH:4][N:3]=1

참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 5212662,4-Dichloro-5-nitropyrimidineHCID 57955537Ethyl 3-(cyclopentylamino)-2-fluoro-2-methylpropanoate

생성물 1

HCID 57955550Ethyl 3-((2-chloro-5-nitropyrimidin-4-yl)(cyclopentyl)amino)-2-fluoro-2-methylpropanoate

시약·촉매·용매 1

HCID 180Acetone용매2회

실험 절차

To a solution of 2,4-dichloro-5-nitropyrimidine (2.14 g, 11.0 mmol) in anhydrous acetone (30 ml) at 0° C., was added dropwise a solution of compound ethyl 3-(cyclopentylamino)-2-fluoro-2-methylpropanoate (2 g, 9.22 mmol) in acetone (10 mL) over 10 min. After which, potassium carbonate (3.8 g, 27.7 mmol) was added and the whole was stirred at rt for 18 h. After evaporation in vacuo, the residue was partitioned between ethyl acetate (200 ml) and water (200 ml). The organic layer was washed with NaHCO3, brine and water, dried over Na2SO4 and concentrated in vacuo to give a red residue which was used directly for next step. [M+H] calc'd for C15H20ClFN4O4, 375; found 375.

후처리

  1. customAfter evaporation in vacuo
  2. customthe residue was partitioned between ethyl acetate (200 ml) and water (200 ml)
  3. washThe organic layer was washed with NaHCO3, brine and water
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. customto give a red residue which

출처 및 근거

ORD 기록
ord-b583808e9add45929a1020063918f517
출처 데이터셋
uspto-grants-2012_11
특허 번호
US08318727B2

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