Sodium hydride → morpholine-4-carboxylic acid 6-(4-fluorophenyl)-5-oxo-7-(2-phenoxypyrimidin-4-yl)-2,3-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-2-yl ester

HRID 1581547노트

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HRID 1581547 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([N:11]2[CH2:15][CH:14]([O:16][C:17]([N:19]3[CH2:24][CH2:23][O:22][CH2:21][CH2:20]3)=[O:18])[CH2:13][N:12]2[C:25]([C:27]2[CH:32]=[CH:31][N:30]=[C:29]([O:33][C:34]3[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=3)[N:28]=2)=O)=[O:10])=[CH:4][CH:3]=1.[H-].[Na+]>CN(C)C=O.O1CCCC1>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9](=[O:10])[N:11]3[CH2:15][CH:14]([O:16][C:17]([N:19]4[CH2:24][CH2:23][O:22][CH2:21][CH2:20]4)=[O:18])[CH2:13][N:12]3[C:25]=2[C:27]2[CH:32]=[CH:31][N:30]=[C:29]([O:33][C:34]3[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=3)[N:28]=2)=[CH:4][CH:3]=1

참가 물질

5

반응물 2

HCID 24758Sodium hydrideHCID 20724735Morpholine-4-carboxylic acid 1-[2-(4-fluorophenyl)acetyl]-2-(2-phenoxypyrimidine-4-carbonyl)-pyrazolidin-4-yl ester

생성물 1

HCID 10118690morpholine-4-carboxylic acid 6-(4-fluorophenyl)-5-oxo-7-(2-phenoxypyrimidin-4-yl)-2,3-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-2-yl ester수율 32%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8028Tetrahydrofuran용매

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온도
0 °C

실험 절차

A solution of morpholine-4-carboxylic acid 1-[2-(4-fluorophenyl)acetyl]-2-(2-phenoxypyrimidine-4-carbonyl)-pyrazolidin-4-yl ester, 42, (154 mg, 0.287 mmol) in dimethylformamide (3 mL) is added dropwise to a −10° C. suspension of sodium hydride (16.4 mg of a 60% dispersion in mineral oil, 0.410 mmol) in tetrahydrofuran (3 mL). After 1 hour at −10° C., the reaction was warmed to 0° C. for 2 hours. The orange-colored solution is then quenched by slowly adding saturated NH4Cl (400 μL). The cooling bath is removed, and the solution allowed to warm to room temperature. The reaction mixture is concentrated in vacuo and the resulting residue is dissolved in THF (25 mL) and filtered through a pad of Celite. The filtrate is concentrated in vacuo and the residue purified by Prep HPLC to afford 47 mg (32% yield) of the desired product as a yellow solid. 1H NMR (300 MHz, CDCl3) δ 8.46 (d, J=4.9 Hz, 1H), 7.47-7.18 (m, 9H), 7.08 (t, J=8.7 Hz, 2H), 6.89 (d, J=4.9 Hz, 1H), 5.66 (m, 1H), 4.16 (m, 2H), 4.02 (d, J=12.9 Hz, 1H), 3.87 (dd, J=12.9, 5.1 Hz, 1H), 3.79-3.30 (m, 8H); HRMS m/z calcd for C27H25FN5O5 (MH+) 518.1840, found 518.1815.

후처리

  1. customThe orange-colored solution is then quenched by slowly adding saturated NH4Cl (400 μL)
  2. customThe cooling bath is removed
  3. temperatureto warm to room temperature
  4. concentrationThe reaction mixture is concentrated in vacuo
  5. dissolutionthe resulting residue is dissolved in THF (25 mL)
  6. filtrationfiltered through a pad of Celite
  7. concentrationThe filtrate is concentrated in vacuo
  8. customthe residue purified by Prep HPLC

출처 및 근거

ORD 기록
ord-f87657aaf2dd46d6b3d2e8dd4717eb0b
출처 데이터셋
uspto-grants-2004_05
특허 번호
US06730668B2

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