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Triphenylphosphine → 1-(3-(4-chloro-1-methyl-1H-pyrazol-5-yl)-4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-3-(2,4-difluorophenyl)urea

HRID 1626163
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HRID 1626163 반응식
[Cl:1][C:2]1[CH:6]=[N:5][N:4]([CH3:7])[C:3]=1[C:8]1[CH:9]=[C:10]([NH:15][C:16]([NH:18][C:19]2[CH:24]=[CH:23][C:22]([F:25])=[CH:21][C:20]=2[F:26])=[O:17])[CH:11]=[CH:12][C:13]=1[OH:14].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.O[CH2:47][CH2:48][N:49]1[CH2:53][CH2:52][CH2:51][CH2:50]1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C1COCC1>[Cl:1][C:2]1[CH:6]=[N:5][N:4]([CH3:7])[C:3]=1[C:8]1[CH:9]=[C:10]([NH:15][C:16]([NH:18][C:19]2[CH:24]=[CH:23][C:22]([F:25])=[CH:21][C:20]=2[F:26])=[O:17])[CH:11]=[CH:12][C:13]=1[O:14][CH2:47][CH2:48][N:49]1[CH2:53][CH2:52][CH2:51][CH2:50]1
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반응물 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 762881-PyrrolidineethanolHCID 1356979371-[3-(4-Chloro-2-methyl-2H-pyrazol-3-yl)4-hydroxy-phenyl]-3-(2,4-difluoro-phenyl)-urea

생성물 1

HCID 454867381-(3-(4-chloro-1-methyl-1H-pyrazol-5-yl)-4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)-3-(2,4-difluorophenyl)urea수율 52.8%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of 1-[3-(4-chloro-2-methyl-2H-pyrazol-3-yl)-4-hydroxy-phenyl]-3-(2,4-difluoro-phenyl)-urea (0.35 g, 0.09 mmol) in anhydrous THF (2 mL), triphenyl phosphine (70.8 mg, 0.27 mmol) and 1-(2-hydroxyethyl)-pyrrolidine (0.032 mL, 0.27 mmol) were added followed by dropwise addition of diisopropyl azodicarboxylate (DIAD) (0.052 mL, 0.27 mmol). The reaction mixture was stirred at room temperature for 2 hours, concentrated to give a crude product that was subjected to purification by preparative HPLC. The proper fractions were collected, neutralized with 1N NaOH and extracted with EtOAc four times. The solution was evaporated under reduced pressure to afford Compound 13 as an off-white solid in 52.8% yield. LCMS m/z (%)=476 (M+H35Cl, 100), 478 (M+H37Cl, 40). 1H NMR (400 MHz, DMSO-d6) δ: 9.10 (s, 1H), 8.55 (s, 1H), 8.17-8.09 (m, 1H), 7.69 (s, 1H), 7.61 (dd, J=8.97 and 2.72 Hz, 1H), 7.47 (d, J=2.70 Hz, 1H), 7.43-7.36 (m, 1H), 7.26 (d, J=9.04 Hz, 1H), 7.16-7.09 (m, 1H), 4.25-4.08 (m, 2H), 3.73 (s, 3H), 2.58-2.45 (m, 2H), 2.45-2.29 (m, 4H), 1.75-1.69 (m, 4H).

후처리

  1. concentrationconcentrated
  2. customto give a crude product that
  3. customwas subjected to purification by preparative HPLC
  4. customThe proper fractions were collected
  5. extractionextracted with EtOAc four times
  6. customThe solution was evaporated under reduced pressure

출처 및 근거

ORD 기록
ord-f68b4f6d3d3a4964bc65f8923343013b
출처 데이터셋
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08785441B2

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