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Lithium hydroxide, monohydrate → 3-(3-{3-(3-Bromo-benzyl)-2-[tert-butoxycarbonylimino]-2,3-dihydro-benzoimidazol-1-yl}-propoxy)-benzoic acid

HRID 410369
ノート
印刷プレビュー

反応式

HRID 410369 の反応式
C([O:3][C:4](=[O:40])[C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH2:12][CH2:13][CH2:14][N:15]2[C:19]3[CH:20]=[CH:21][CH:22]=[CH:23][C:18]=3[N:17]([CH2:24][C:25]3[CH:30]=[CH:29][CH:28]=[C:27]([Br:31])[CH:26]=3)[C:16]2=[N:32][C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])[CH:6]=1)C.O[Li].O>C1COCC1.CO.O>[Br:31][C:27]1[CH:26]=[C:25]([CH:30]=[CH:29][CH:28]=1)[CH2:24][N:17]1[C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=2[N:15]([CH2:14][CH2:13][CH2:12][O:11][C:7]2[CH:6]=[C:5]([CH:10]=[CH:9][CH:8]=2)[C:4]([OH:40])=[O:3])[C:16]1=[N:32][C:33]([O:35][C:36]([CH3:38])([CH3:39])[CH3:37])=[O:34]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 2

HCID 168937Lithium hydroxide, monohydrateHCID 674286753-(3-{3-(3-Bromo-benzyl)-2-[tert-butoxycarbonylimino]-2,3-dihydro-benzoimidazol-1-yl}-propoxy)-benzoic acid ethyl ester

生成物 1

HCID 674283863-(3-{3-(3-Bromo-benzyl)-2-[tert-butoxycarbonylimino]-2,3-dihydro-benzoimidazol-1-yl}-propoxy)-benzoic acid収率 103.4%

試薬・触媒・溶媒 3

HCID 887Methanol溶媒
HCID 962
Water
溶媒
HCID 8028Tetrahydrofuran溶媒

反応条件

温度
40 °C

実験手順

To a solution of 3-(3-{3-(3-bromo-benzyl)-2-[tert-butoxycarbonylimino]-2,3-dihydro-benzoimidazol-1-yl}-propoxy)-benzoic acid ethyl ester (155 mg, 0.25 mmol) in THF (2 ml), MeOH (2 ml) and H2O (1 ml) was added LiOH.H2O (53 mg, 1.27 mmol). The reaction was warmed to 40° C. where it was maintained for 20 h. After this time, the reaction was cooled to rt concentrated under reduced pressure and then partitioned between EtOAc and 1M HCl. The organic phase was separated and the aqueous phase was extracted with additional EtOAc. The combined organic layers were washed with brine, dried (Na2SO4), filtered and concentrated under reduced pressure to provide 3-(3-{3-(3-bromo-benzyl)-2-[tert-butoxycarbonylimino]-2,3-dihydro-benzoimidazol-1-yl}-propoxy)-benzoic acid (150 mg, 100%). HPLC-MS 580, 582 [M+1]+.

後処理

  1. temperaturewas maintained for 20 h
  2. temperatureAfter this time, the reaction was cooled to rt
  3. concentrationconcentrated under reduced pressure
  4. custompartitioned between EtOAc and 1M HCl
  5. customThe organic phase was separated
  6. extractionthe aqueous phase was extracted with additional EtOAc
  7. washThe combined organic layers were washed with brine
  8. dry with materialdried (Na2SO4)
  9. filtrationfiltered
  10. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-4bfacc3b32ef41378d4a87be41190ae0
出典データセット
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08759520B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート