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Hydrazine, cyclopropyl-, hydrochloride (1:1) → 4-(4-chlorophenyl)-1-cyclopropyl-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-3-methyl-4,5-dihydropyrrolo-[3,4-c]pyrazol-6(1H)-one

HRID 873951
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HRID 873951 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]([C:16]2[CH:17]=[C:18]([CH3:26])[C:19]3[N:20]([C:22]([CH3:25])=[N:23][N:24]=3)[CH:21]=2)[C:6](=[O:27])[C:5]=1O)(=O)[CH3:2].Cl.[CH:30]1([NH:33][NH2:34])[CH2:32][CH2:31]1>CCO.C1(C)C=CC=CC=1>[Cl:15][C:12]1[CH:11]=[CH:10][C:9]([CH:8]2[C:4]3[C:1]([CH3:2])=[N:34][N:33]([CH:30]4[CH2:32][CH2:31]4)[C:5]=3[C:6](=[O:27])[N:7]2[C:16]2[CH:17]=[C:18]([CH3:26])[C:19]3[N:20]([C:22]([CH3:25])=[N:23][N:24]=3)[CH:21]=2)=[CH:14][CH:13]=1
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참가 물질

5

반응물 2

HCID 19594967Hydrazine, cyclopropyl-, hydrochloride (1:1)HCID 1177026714-acetyl-5-(4-chlorophenyl)-1-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-3-hydroxy-1H-pyrrol-2(5H)-one

생성물 1

HCID 862933504-(4-chlorophenyl)-1-cyclopropyl-5-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-3-methyl-4,5-dihydropyrrolo-[3,4-c]pyrazol-6(1H)-one수율 59.9%

시약·촉매·용매 2

HCID 702Ethanol용매
HCID 1140
Toluene
용매

실험 절차

A mixture of 4-acetyl-5-(4-chlorophenyl)-1-(3,8-dimethyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-3-hydroxy-1H-pyrrol-2(5H)-one (Step 92.1) (630 mg, 1.588 mmol) and cyclopropylhydrazine hydrochloride (517 mg, 4.76 mmol) in EtOH (8 mL) and toluene (8 mL) was stirred for 2 hr at reflux. The reaction mixture was concentrated, diluted with CH2Cl2/saturated aq. NaHCO3 solution, and extracted with CH2Cl2. The combined organic layers were washed with water and brine, dried over Na2SO4 and evaporated. The crude material was purified by silica gel column chromatography (1% ammonia/5% MeOH/CH2Cl2) to afford the title product (412 mg, 0.952 mmol, 59.9% yield) as a yellow foam. tR: 0.95 min (LC-MS 2); ESI-MS: 433 [M+H]+ (LC-MS 2); Rf=0.28 (1% ammonia/5% MeOH/CH2Cl2); 1H NMR (400 MHz, DMSO-d6) δ ppm 0.98-1.11 (m, 2H) 1.18-1.29 (m, 2H) 1.92 (s, 3H) 2.43 (s, 3H) 2.61 (s, 3H) 3.75-3.87 (m, 1H) 6.41 (s, 1H) 7.27-7.39 (m, 5H) 8.33-8.48 (m, 1H).

후처리

  1. temperatureat reflux
  2. concentrationThe reaction mixture was concentrated
  3. additiondiluted with CH2Cl2/saturated aq. NaHCO3 solution
  4. extractionextracted with CH2Cl2
  5. washThe combined organic layers were washed with water and brine
  6. dry with materialdried over Na2SO4
  7. customevaporated
  8. customThe crude material was purified by silica gel column chromatography (1% ammonia/5% MeOH/CH2Cl2)

출처 및 근거

ORD 기록
ord-65cd1ee6f6d646d39835dec548bcd0dc
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08975417B2

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