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Citric Acid → 2-(7-(3-Cyano-4-isopropoxybenzyloxy)-8-methyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetic Acid

HRID 1964153
ノート
印刷プレビュー

反応式

HRID 1964153 の反応式
[C:1]([C:3]1[CH:4]=[C:5]([CH:27]=[CH:28][C:29]=1[O:30][CH:31]([CH3:33])[CH3:32])[CH2:6][O:7][C:8]1[CH:16]=[CH:15][C:14]2[N:13]3[CH2:17][CH2:18][CH:19]([CH2:20][C:21]([O:23]CC)=[O:22])[C:12]3=[CH:11][C:10]=2[C:9]=1[CH3:26])#[N:2].[Li+].[OH-].C(O)(=O)CC(CC(O)=O)(C(O)=O)O>O1CCOCC1>[C:1]([C:3]1[CH:4]=[C:5]([CH:27]=[CH:28][C:29]=1[O:30][CH:31]([CH3:33])[CH3:32])[CH2:6][O:7][C:8]1[CH:16]=[CH:15][C:14]2[N:13]3[CH2:17][CH2:18][CH:19]([CH2:20][C:21]([OH:23])=[O:22])[C:12]3=[CH:11][C:10]=2[C:9]=1[CH3:26])#[N:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 311Citric AcidHCID 3939Lithium HydroxideHCID 67248141Ethyl 2-(7-(3-Cyano-4-isopropoxybenzyloxy)-8-methyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate

生成物 1

HCID 583295982-(7-(3-Cyano-4-isopropoxybenzyloxy)-8-methyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetic Acid収率 90.3%

試薬・触媒・溶媒 1

HCID 31275
1,4-Dioxane
溶媒

実験手順

To a solution of ethyl 2-(7-(3-cyano-4-isopropoxybenzyloxy)-8-methyl-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate (130 mg, 0.291 mmol) in dioxane (2 mL) was added a 1 M LiOH aqueous solution (1.747 mL, 1.747 mmol). The reaction mixture was stirred at room temperature for 5 h, acidified to pH 3 with 0.5 M citric acid aqueous solution, and extracted with ethyl acetate. The combined organics were washed with water, dried over anhydrous Na2SO4, and concentrated to give the title compound as pink solid (110 mg). LCMS m/z=419.4 [M+H]+; 1H NMR (400 MHz, CDCl3) δ ppm 1.42 (d, J=6.0 Hz, 6H), 2.25-2.35 (m, 1H), 2.41 (s, 3H), 2.67 (dd, J=16.5, 8.5 Hz, 1H), 2.88-2.98 (m, 2H), 3.73-3.81 (m, 1H), 3.97-4.04 (m, 1H), 4.10-4.16 (m, 1H), 4.62-4.68 (m, 1H), 4.97 (s, 2H), 6.17 (s, 1H), 6.84 (d, J=8.7 Hz, 1H), 6.97 (d, J=8.7 Hz, 1H), 7.01 (d, J=8.7 Hz, 1H), 7.59 (dd, J=8.6, 2.2 Hz, 1H), 7.63 (d, J=2.2 Hz, 1H).

後処理

  1. extractionextracted with ethyl acetate
  2. washThe combined organics were washed with water
  3. dry with materialdried over anhydrous Na2SO4
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-0d4296cf88ce46299dafe820fe132b95
出典データセット
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08415484B2

反応ノート

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