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Sodium Hydroxide → {3-tert-Butyl-1'-[3-(tetrahydro-pyran-2-yloxy)-propyl]-1'H-[1,4']bipyrazolyl-5-yl}-carbamic acid 2,2,2-trichloro-ethyl ester

HRID 630899
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HRID 630899 반응식
[C:1]([C:5]1[CH:9]=[C:8]([NH2:10])[N:7]([C:11]2[CH:12]=[N:13][N:14]([CH2:16][CH2:17][CH2:18][O:19][CH:20]3[CH2:25][CH2:24][CH2:23][CH2:22][O:21]3)[CH:15]=2)[N:6]=1)([CH3:4])([CH3:3])[CH3:2].[OH-].[Na+].Cl[C:29]([O:31][CH2:32][C:33]([Cl:36])([Cl:35])[Cl:34])=[O:30]>O.CCOC(C)=O>[Cl:34][C:33]([Cl:36])([Cl:35])[CH2:32][O:31][C:29](=[O:30])[NH:10][C:8]1[N:7]([C:11]2[CH:12]=[N:13][N:14]([CH2:16][CH2:17][CH2:18][O:19][CH:20]3[CH2:25][CH2:24][CH2:23][CH2:22][O:21]3)[CH:15]=2)[N:6]=[C:5]([C:1]([CH3:4])([CH3:2])[CH3:3])[CH:9]=1
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HCID 14798Sodium HydroxideHCID 870632,2,2-Trichloroethyl chloroformateHCID 866871823-tert-Butyl-1'-[3-(tetrahydro-pyran-2-yloxy)-propyl]-1'H-[1,4']bipyrazolyl-5-ylamine

생성물 1

HCID 86687181{3-tert-Butyl-1'-[3-(tetrahydro-pyran-2-yloxy)-propyl]-1'H-[1,4']bipyrazolyl-5-yl}-carbamic acid 2,2,2-trichloro-ethyl ester수율 91.5%

시약·촉매·용매 2

HCID 962
Water
용매
HCID 8857Ethyl Acetate용매

실험 절차

To a stirred mixture of Intermediate 113b (1.14 g, 3.28 mmol) in water (6 mL) and EtOAc (12 mL) was added NaOH (263 mg, 6.57 mmol). After 10 min, 2,2,2-trichloroethyl chloroformate (543 μL, 3.94 mmol) was added and the reaction mixture was stirred at RT for 1 h. The aqueous layer was extracted with EtOAc (×3) and the combined organic layers were washed with brine, dried (MgSO4) and concentrated in vacuo. The resultant residue was purified by FCC on silica, using a gradient of 0-100% EtOAc in cyclohexane, to afford the title compound (1.57 g, 91%). LCMS (Method 4): Rt 3.99 min, m/z 522, 524 [MH+].

후처리

  1. extractionThe aqueous layer was extracted with EtOAc (×3)
  2. washthe combined organic layers were washed with brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated in vacuo
  5. customThe resultant residue was purified by FCC on silica

출처 및 근거

ORD 기록
ord-580820225b7e468b9bd7e70086db21bf
출처 데이터셋
uspto-grants-2016_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09315503B2

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