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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 1402354
ノート
印刷プレビュー

反応式

HRID 1402354 の反応式
[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
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

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

生成物 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 ester収率 91.5%

試薬・触媒・溶媒 2

HCID 962
Water
溶媒
HCID 8857Ethyl Acetate溶媒

実験手順

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+].

後処理

  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

出典と根拠

ORDレコード
ord-508adbf6c642423484da09a69b1c31f0
出典データセット
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08907094B2

反応ノート

読み込み中…

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