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

HRID 1755373
ノート
印刷プレビュー

反応式

HRID 1755373 の反応式
[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:40]=[CH:39][C:34]([C:35]([O:37][CH3:38])=[O:36])=[C:33]([O:41][CH3:42])[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:40]=[CH:39][C:34]([C:35]([O:37][CH3:38])=[O:36])=[C:33]([O:41][CH3:42])[CH:32]=3)=[O:22])[CH:17]=2)=[N:7][C:8]=1[O:9][CH3:10]
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 13901-MethylimidazoleHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 168705Methyl 4-amino-o-anisateHCID 715343363-(8-(5,6-Dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzoic acid

生成物 1

HCID 86682729Methyl 4-(3-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzamido)-2-methoxybenzoate収率 47.5%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A mixture of 3-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzoic acid (150 mg, 0.38 mmol), methyl 4-amino-2-methoxybenzoate (70 mg, 0.38 mmol), 1-methyl-1H-imidazole (126 mg, 1.53 mmol) and EDCI (293 mg, 1.53 mmol) in DMF (3 mL) was stirred for 16 h at room temperature. Ethyl acetate (5 mL) and water (5 mL) were added. The organic layer was separated and the aqueous phase was extracted with ethyl acetate (20 mL). The combined organic phases were washed with brine (10 mL) and dried over Na2SO4. The residue was concentrated and purified by chromatography (silica gel, 200-300 mesh, dichloromethane:MeOH=50:1) to give methyl 4-(3-(8-(5,6-dimethoxypyridin-2-ylamino)imidazo[1,2-b]pyridazin-6-yl)benzamido)-2-methoxybenzoate (100 mg, 47%) as brown liquid. LC-MS: [M+H]+, 555.1, tR=1.701 min

後処理

  1. customThe organic layer was separated
  2. extractionthe aqueous phase was extracted with ethyl acetate (20 mL)
  3. washThe combined organic phases were washed with brine (10 mL)
  4. dry with materialdried over Na2SO4
  5. concentrationThe residue was concentrated
  6. custompurified by chromatography (silica gel, 200-300 mesh, dichloromethane:MeOH=50:1)

出典と根拠

ORDレコード
ord-4679959645be4779b68ded550df3f8ad
出典データセット
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09169259B2

反応ノート

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