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Hydrochloric Acid → 3-(Benzyloxy)-4-oxo-6,7,8,9-tetrahydro-4H-7,10-ethanopyrimido[1,2-a][1,3]diazepine-2-carboxylic acid

HRID 1093120
ノート
印刷プレビュー

反応式

HRID 1093120 の反応式
[CH2:1]([O:8][C:9]1[C:21](=[O:22])[N:13]2[CH2:14][CH:15]3[CH2:20][CH2:19][N:18]([C:12]2=[N:11][C:10]=1[C:23]([O:25]CC)=[O:24])[CH2:17][CH2:16]3)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O[Li].O.Cl>C(O)C.O>[CH2:1]([O:8][C:9]1[C:21](=[O:22])[N:13]2[CH2:14][CH:15]3[CH2:16][CH2:17][N:18]([C:12]2=[N:11][C:10]=1[C:23]([OH:25])=[O:24])[CH2:19][CH2:20]3)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 313Hydrochloric AcidHCID 168937Lithium hydroxide, monohydrateHCID 57904901Ethyl 3-(benzyloxy)-4-oxo-6,7,8,9-tetrahydro-4H-7,10-ethanopyrimido[1,2-a][1,3]diazepine-2-carboxylate

生成物 1

HCID 579050733-(Benzyloxy)-4-oxo-6,7,8,9-tetrahydro-4H-7,10-ethanopyrimido[1,2-a][1,3]diazepine-2-carboxylic acid収率 89.1%

試薬・触媒・溶媒 2

HCID 702
Ethanol
溶媒
HCID 962Water溶媒

実験手順

A mixture of ethyl 3-(benzyloxy)-4-oxo-6,7,8,9-tetrahydro-4H-7,10-ethanopyrimido[1,2-a][1,3]diazepine-2-carboxylate (0.5491 g, 1.486 mmol) and LiOH.H2O (0.071 g, 2.97 mmol) in ethanol (12 mL) and water (3.00 mL) was stirred at room temperature for 6 h. The mixture was acidified with concentrated HCl and the product was extracted with ethyl acetate. The organic phase was washed with brine, then dried (Na2SO4), filtered and concentrated to give the title compound as a white solid (0.4521 g, 89% yield). 1H NMR (500 MHz, CD3OD) δ: 7.53-7.49 (2H, m), 7.42-7.36 (3H, m), 5.27 (2H, d, J=15.3 Hz), 4.11-4.00 (4H, m), 3.96 (2H, d, J=14.0 Hz), 3.17-3.13 (1H, m), 2.45-2.39 (2H, m), 2.10-2.03 (2H, m). LCMS (M+H) calcd for C18H20N3O4: 342.14; found: 342.20.

後処理

  1. extractionthe product was extracted with ethyl acetate
  2. washThe organic phase was washed with brine
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated

出典と根拠

ORDレコード
ord-dc765f070c604140a3333a000389e5e6
出典データセット
uspto-grants-2012_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08129398B2

反応ノート

読み込み中…

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