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1-Methylimidazole → Tert-butyl 4-(3-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzamido)benzoate

HRID 1755370
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HRID 1755370 반응식
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([NH:11][C:12]2[C:13]3[N:14]([CH:27]=[CH:28][N:29]=3)[N:15]=[C:16]([C:18]3[CH:19]=[C:20]([CH:24]=[CH:25][CH:26]=3)[C:21](O)=[O:22])[CH:17]=2)=[N:7][C:8]=1[O:9][CH3:10].[NH2:30][C:31]1[CH:43]=[CH:42][C:34]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])=[CH:33][CH:32]=1.CN1C=CN=C1.CCN=C=NCCCN(C)C>CN(C=O)C.O.C(OCC)(=O)C>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([NH:11][C:12]2[C:13]3[N:14]([CH:27]=[CH:28][N:29]=3)[N:15]=[C:16]([C:18]3[CH:19]=[C:20]([CH:24]=[CH:25][CH:26]=3)[C:21]([NH:30][C:31]3[CH:43]=[CH:42][C:34]([C:35]([O:37][C:38]([CH3:39])([CH3:40])[CH3:41])=[O:36])=[CH:33][CH:32]=3)=[O:22])[CH:17]=2)=[N:7][C:8]=1[O:9][CH3:10]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 4

HCID 13901-MethylimidazoleHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 233272Benzoic acid, 4-amino-, 1,1-dimethylethyl esterHCID 715343363-(8-(5,6-Dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzoic acid

생성물 1

HCID 71534337Tert-butyl 4-(3-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzamido)benzoate
수율 55%

시약·촉매·용매 3

HCID 962Water용매HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

A mixture of 3-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzoic acid (100 mg, 0.26 mmol), tert-butyl 4-aminobenzoate (50 mg, 0.26 mmol), 1-methyl-1H-imidazole (85 mg, 1.02 mmol) and EDCI (200 mg, 1.02 mmol) in DMF (3 mL) was stirred for 16 h at room temperature. Ethyl acetate (10 mL) and water (10 mL) were added to the mixture and the organic layer was washed with brine (10 mL×2) then dried over Na2SO4. The residue was concentrated and purified by chromatography (dichloromethane:MeOH=50:1) to give tert-butyl 4-(3-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzamido)benzoate (80 mg, 55%) as a yellow solid. LC-MS: [M+H]+, 567, tR=1.820 min

후처리

  1. washthe organic layer was washed with brine (10 mL×2)
  2. dry with materialthen dried over Na2SO4
  3. concentrationThe residue was concentrated
  4. custompurified by chromatography (dichloromethane:MeOH=50:1)

출처 및 근거

ORD 기록
ord-45d063553ec14002a94116513ec4fffe
출처 데이터셋
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09169259B2

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