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5-hydrazinyl-1-methyl-1H-pyrazole → 4-(4-chlorophenyl)-5-(4-methoxybenzyl)-3-methyl-1-(1-methyl-1H-pyrazol-5-yl)-4,5-dihydropyrrolo-[3,4-c]pyrazol-6(1H)-one

HRID 873978
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HRID 873978 반응식
[C:1]([C:4]1[CH:8]([C:9]2[CH:14]=[CH:13][C:12]([Cl:15])=[CH:11][CH:10]=2)[N:7]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=2)[C:6](=[O:25])[C:5]=1O)(=O)[CH3:2].[NH:27]([C:29]1[N:33]([CH3:34])[N:32]=[CH:31][CH:30]=1)[NH2:28]>CCO.C1(C)C=CC=CC=1>[Cl:15][C:12]1[CH:13]=[CH:14][C:9]([CH:8]2[C:4]3[C:1]([CH3:2])=[N:28][N:27]([C:29]4[N:33]([CH3:34])[N:32]=[CH:31][CH:30]=4)[C:5]=3[C:6](=[O:25])[N:7]2[CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=2)=[CH:10][CH:11]=1
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참가 물질

5

반응물 2

HCID 684257025-hydrazinyl-1-methyl-1H-pyrazoleHCID 1177028964-acetyl-5-(4-chlorophenyl)-3-hydroxy-1-[(4-methoxyphenyl)methyl]-2,5-dihydro-1H-pyrrol-2-one

생성물 1

HCID 1177027824-(4-chlorophenyl)-5-(4-methoxybenzyl)-3-methyl-1-(1-methyl-1H-pyrazol-5-yl)-4,5-dihydropyrrolo-[3,4-c]pyrazol-6(1H)-one수율 85.4%

시약·촉매·용매 2

HCID 702Ethanol용매
HCID 1140
Toluene
용매

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온도
115 °C

실험 절차

To a stirred solution of 4-acetyl-5-(4-chlorophenyl)-3-hydroxy-1-(4-methoxybenzyl)-1H-pyrrol-2(5H)-one (Step 71.2) (3 g, 8.07 mmol) in EtOH (50 mL) and toluene (50 mL) was added 5-hydrazinyl-1-methyl-1H-pyrazole (Step 74.2) (1.941 g, 10.49 mmol) and the resulting mixture was heated up and stirred at 115° C. for 20 hr. The reaction was quenched with a saturated aq. NaHCO3 solution and extracted with EtOAc. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography (hexane/EtOAc 40-50%) to afford the title product (3.15 g, 6.89 mmol, 85% yield) as yellow solid. tR: 5.60 min (HPLC 1); tR: 1.24 min (LC-MS 2); ESI-MS: 448 [M+H]+ (LC-MS 2); Rf=0.41 (hexane/EtOAc 1:1).

후처리

  1. temperaturethe resulting mixture was heated up
  2. customThe reaction was quenched with a saturated aq. NaHCO3 solution
  3. extractionextracted with EtOAc
  4. dry with materialThe combined organic layers were dried over Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customThe crude product was purified by silica gel column chromatography (hexane/EtOAc 40-50%)

출처 및 근거

ORD 기록
ord-5880acb5d1534a64bed68a7a41bded1f
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08975417B2

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