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Methanol → (R)-(1-(4-fluorophenyl)-4,4a,5,6,7,8-hexahydro-1H-pyrazolo[3,4-g]isoquinolin-4a-yl)(4-(trifluoromethyl)pyridin-2-yl)methanone

HRID 537262
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HRID 537262 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]3[CH:13]=[C:14]4[C@:19]([C:21](=[O:32])[C:22]5[CH:27]=[C:26]([C:28]([F:31])([F:30])[F:29])[CH:25]=[CH:24][N:23]=5)([CH2:20][C:11]=3[CH:10]=[N:9]2)[CH2:18][N:17](C(OC(C)(C)C)=O)[CH2:16][CH2:15]4)=[CH:4][CH:3]=1.O1CCOCC1.CO.ClCCl>Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]3[CH:13]=[C:14]4[C@:19]([C:21]([C:22]5[CH:27]=[C:26]([C:28]([F:31])([F:29])[F:30])[CH:25]=[CH:24][N:23]=5)=[O:32])([CH2:20][C:11]=3[CH:10]=[N:9]2)[CH2:18][NH:17][CH2:16][CH2:15]4)=[CH:4][CH:3]=1
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참가 물질

6

반응물 4

HCID 887MethanolHCID 6344DichloromethaneHCID 312751,4-DioxaneHCID 86709996(R)-tert-butyl 1-(4-fluorophenyl)-4a-(4-(trifluoromethyl)picolinoyl)-4a,5,7,8-tetrahydro-1H-pyrazolo[3,4-g]isoquinoline-6(4H)-carboxylate

생성물 1

HCID 86709995(R)-(1-(4-fluorophenyl)-4,4a,5,6,7,8-hexahydro-1H-pyrazolo[3,4-g]isoquinolin-4a-yl)(4-(trifluoromethyl)pyridin-2-yl)methanone
수율 69.1%

시약·촉매·용매 1

HCID 313Hydrochloric Acid용매

실험 절차

(R)-tert-butyl 1-(4-fluorophenyl)-4a-(4-(trifluoromethyl)picolinoyl)-4a,5,7,8-tetrahydro-1H-pyrazolo[3,4-g]isoquinoline-6(4H)-carboxylate (2 g, 2.65 mmol) was dissolved in a solution of HCl in dioxane (4M) (13.27 ml, 53.1 mmol) and the reaction mixture was stirred at room temperature for 45 minutes. The solvent was removed in vacuo to give an orange gum. This was treated with a mixture of 10% methanol (containing 1% of ammonia)/dichloromethane until complete dissolution of the gum, then the solvent was removed in vacuo to give an orange solid. The crude product was purified by chromatography on silica gel (gradient: 0-10% methanol (containing 1% of ammonia) in dichloromethane) to give (R)-(1-(4-fluorophenyl)-4,4a,5,6,7,8-hexahydro-1H-pyrazolo[3,4-g]isoquinolin-4a-yl)(4-(trifluoromethyl)pyridin-2-yl)methanone (810 mg) as a pale orange solid. LCMS (Method F, ES-API): RT 1.41 min, m+H=443.2.

후처리

  1. customThe solvent was removed in vacuo
  2. customto give an orange gum
  3. customthe solvent was removed in vacuo
  4. customto give an orange solid
  5. customThe crude product was purified by chromatography on silica gel (gradient: 0-10% methanol (containing 1% of ammonia) in dichloromethane)

출처 및 근거

ORD 기록
ord-79481358eee94b46bbf7714b229d0679
출처 데이터셋
uspto-grants-2014_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08859774B2

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