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Diisopropylethylamine → Methyl 1-((3-nitro-4-(5-(1-phenylcyclopropyl)thiazolo[5,4-b]pyridine-2-yl)phenyl)methyl)azetidine-3-carboxylate

HRID 1177520
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HRID 1177520 반응식
Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[S:10][C:11]3[C:16]([N:17]=2)=[CH:15][CH:14]=[C:13]([C:18]2([C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=4)[CH2:20][CH2:19]2)[N:12]=3)=[C:5]([N+:27]([O-:29])=[O:28])[CH:4]=1.Cl.[NH:31]1[CH2:34][CH:33]([C:35]([O:37][CH3:38])=[O:36])[CH2:32]1.C(N(CC)C(C)C)(C)C.C([O-])(O)=O.[Na+]>CN(C=O)C.CC(=O)OCC>[N+:27]([C:5]1[CH:4]=[C:3]([CH2:2][N:31]2[CH2:34][CH:33]([C:35]([O:37][CH3:38])=[O:36])[CH2:32]2)[CH:8]=[CH:7][C:6]=1[C:9]1[S:10][C:11]2[C:16]([N:17]=1)=[CH:15][CH:14]=[C:13]([C:18]1([C:21]3[CH:22]=[CH:23][CH:24]=[CH:25][CH:26]=3)[CH2:20][CH2:19]1)[N:12]=2)([O-:29])=[O:28]
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참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 516892Sodium BicarbonateHCID 21100040Methyl azetidine-3-carboxylate hydrochlorideHCID 671118432-(4-(Bromomethyl)-2-nitrophenyl)-5-(1-phenylcyclopropyl)-thiazolo[5,4-b]pyridine

생성물 1

HCID 67112881Methyl 1-((3-nitro-4-(5-(1-phenylcyclopropyl)thiazolo[5,4-b]pyridine-2-yl)phenyl)methyl)azetidine-3-carboxylate

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

반응 조건

온도
80 °C

실험 절차

A mixture of 2-(4-(bromomethyl)-2-nitrophenyl)-5-(1-phenylcyclopropyl)-thiazolo[5,4-b]pyridine (0.363 g, 0.778 mmol), methyl azetidine-3-carboxylate hydrochloride (0.354 g, 2.34 mmol), N,N-diisopropylethylamine (0.812 mL, 4.67 mmol) in 3 mL DMF was heated in a sealed vial to 80° C. for 1 h. The reaction mixture was cooled and allowed to stand overnight. In the morning the reaction mixture was treated with ice, sat'd aq. NaHCO3, and EA. The organic layer was washed with water, brine, dried over sodium sulfate, filtered, and concentrated in vacuo. Purification by silica gel chromatography, 40 g, 0-10% MeOH/DCM gave methyl 1-((3-nitro-4-(5-(1-phenylcyclopropyl)thiazolo[5,4-b]pyridine-2-yl)phenyl)methyl)azetidine-3-carboxylate as a yellow oil. MS (ESI) m/z: Calculated: 500.2; Observed: 500.7 (M++1).

후처리

  1. temperatureThe reaction mixture was cooled
  2. additionIn the morning the reaction mixture was treated with ice
  3. washThe organic layer was washed with water, brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification by silica gel chromatography, 40 g, 0-10% MeOH/DCM

출처 및 근거

ORD 기록
ord-79297f7f76a8489eb1ff72f9a8f3e85f
출처 데이터셋
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07842685B2

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