Diisopropylethylamine → 2-Oxo-4-pyridin-2-yl-1,2,4,5-tetrahydroimidazo[1,5,4-de][1,4]benzoxazine-4-carboxamide

HRID 589077ノート

反応式

HRID 589077 の反応式
Cl[C:2](Cl)([O:4]C(=O)OC(Cl)(Cl)Cl)Cl.[NH2:13][C:14]1[C:19]2[NH:20][C:21]([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][N:28]=3)([C:24]([NH2:26])=[O:25])[CH2:22][O:23][C:18]=2[CH:17]=[CH:16][CH:15]=1.C(N(CC)C(C)C)(C)C>O1CCCC1>[O:4]=[C:2]1[N:20]2[C:21]([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][N:28]=3)([C:24]([NH2:26])=[O:25])[CH2:22][O:23][C:18]3=[C:19]2[C:14](=[CH:15][CH:16]=[CH:17]3)[NH:13]1

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 94429TriphosgeneHCID 904089895-amino-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamide

生成物 1

HCID 904094432-Oxo-4-pyridin-2-yl-1,2,4,5-tetrahydroimidazo[1,5,4-de][1,4]benzoxazine-4-carboxamide収率 192.9%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

Triphosgene (20 mg, 0.07 mmol) was added to a solution of 5-amino-3-pyridin-2-yl-3,4-dihydro-2H-1,4-benzoxazine-3-carboxamide (40 mg, 0.2 mmol) in tetrahydrofuran (5 mL) and N,N-diisopropylethylamine (60 μL, 0.3 mmol) at room temperature. The reaction was stirred for 1 h and then partitioned between ethyl acetate and water. The combined organic layer was washed with brine, dried over magnesium sulfate, filtered, and concentrated to give crude 2-oxo-4-pyridin-2-yl-1,2,4,5-tetrahydroimidazo[1,5,4-de][1,4]benzoxazine-4-carboxamide (0.040 g. 80%). LCMS calculated for C15H13N4O3 (M+H)+: m/z=297.1. found: 297.1.

後処理

  1. custompartitioned between ethyl acetate and water
  2. washThe combined organic layer was washed with brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-58e2d4eca05b4296be843b865e2d90e2
出典データセット
uspto-grants-2016_01
特許番号
US09227985B2

反応ノート

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