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Diethyl Ether → tert-butyl 4-(3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate

HRID 387570
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HRID 387570 반응식
Cl[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([O:9][CH3:10])=[CH:5][CH:4]=1.[I:11][C:12]1[C:20]2[C:15](=[N:16][CH:17]=[CH:18][C:19]=2[N:21]2[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:23][CH2:22]2)[NH:14][N:13]=1.C([O-])([O-])=O.[K+].[K+].CCOCC>CN(C=O)C.O>[I:11][C:12]1[C:20]2[C:15](=[N:16][CH:17]=[CH:18][C:19]=2[N:21]2[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:23][CH2:22]2)[N:14]([CH2:2][C:3]2[CH:8]=[CH:7][C:6]([O:9][CH3:10])=[CH:5][CH:4]=2)[N:13]=1
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참가 물질

7

반응물 4

HCID 3283Diethyl EtherHCID 11430Potassium CarbonateHCID 699934-Methyloxybenzyl chlorideHCID 178452246HCID 178452246, 화합물

생성물 1

HCID 68759242tert-butyl 4-(3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate수율 80.1%

시약·촉매·용매 2

HCID 962
Water
용매
HCID 6228Dimethylformamide용매

실험 절차

1-(Chloromethyl)-4-methoxybenzene (0.219 mL, 1.61 mmol) was added to tert-butyl 4-(3-iodo-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate (0.575 g, 1.34 mmol) and K2CO3 (0.222 g, 1.61 mmol) in DMF (10 mL). The reaction was stirred at room temperature for 2 hours. Ether (30 mL) and water (10 mL) were added. The organic layer was separated, washed with brine, and dried over sodium sulfate. After removal of the solvent, the resulting residue was purified by chromatography (hexane:ethyl acetate, 3:1) to give tert-butyl 4-(3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazine-1-carboxylate (0.59 g, 80%) as a solid. MS APCI (+) m/z 549.7 detected. 1H NMR (400 Hz, DMSO-d6) δ 8.37 (d, J=5.2 Hz, 1H), 7.21 (d, J=8.4 Hz, 2H), 6.87 (d, J=8.4 Hz, 2H), 6.68 (d, J=5.2 Hz, 1H), 5.53 (s, 2H), 3.70 (s, 3H), 3.62 (m, 4H), 3.19 (m, 4H), 1.43 (s, 9H).

후처리

  1. customThe organic layer was separated
  2. washwashed with brine
  3. dry with materialdried over sodium sulfate
  4. customAfter removal of the solvent
  5. customthe resulting residue was purified by chromatography (hexane:ethyl acetate, 3:1)

출처 및 근거

ORD 기록
ord-e86d892385944dbf868379a712519b1c
출처 데이터셋
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08372842B2

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