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Methanol → 3-(1-(4-bromobenzyl)-5-(quinolin-2-ylmethoxy)-1H-benzo[d]imidazol-2-yl)-2,2-dimethylpropanoic acid

HRID 1776722
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HRID 1776722 반응식
[Li+].[OH-].[Br:3][C:4]1[CH:40]=[CH:39][C:7]([CH2:8][N:9]2[C:13]3[CH:14]=[CH:15][C:16]([O:18][CH2:19][C:20]4[CH:29]=[CH:28][C:27]5[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=5)[N:21]=4)=[CH:17][C:12]=3[N:11]=[C:10]2[CH2:30][C:31]([CH3:38])([CH3:37])[C:32]([O:34]CC)=[O:33])=[CH:6][CH:5]=1.C1COCC1.CO>O>[Br:3][C:4]1[CH:5]=[CH:6][C:7]([CH2:8][N:9]2[C:13]3[CH:14]=[CH:15][C:16]([O:18][CH2:19][C:20]4[CH:29]=[CH:28][C:27]5[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=5)[N:21]=4)=[CH:17][C:12]=3[N:11]=[C:10]2[CH2:30][C:31]([CH3:37])([CH3:38])[C:32]([OH:34])=[O:33])=[CH:39][CH:40]=1
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HCID 887MethanolHCID 3939Lithium HydroxideHCID 8028TetrahydrofuranHCID 90415263ethyl 3-(1-(4-bromobenzyl)-5-(quinolin-2-ylmethoxy)-1H-benzo[d]imidazol-2-yl)-2,2-dimethylpropanoate

생성물 1

HCID 862813933-(1-(4-bromobenzyl)-5-(quinolin-2-ylmethoxy)-1H-benzo[d]imidazol-2-yl)-2,2-dimethylpropanoic acid수율 83%

시약·촉매·용매 1

HCID 962Water용매2회

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온도
80 °C

실험 절차

A solution of LiOH (39 mg, 0.9 mmol) in water (2 mL) was added to a 20 mL round-bottomed flask containing ethyl 3-(1-(4-bromobenzyl)-5-(quinolin-2-ylmethoxy)-1H-benzo[d]imidazol-2-yl)-2,2-dimethylpropanoate (106 mg, 0.19 mmol), THF (3 mL), MeOH (3 mL), and water (3 mL). The resulting solution was heated to 80° C. After 2 h, the solution was concentrated to dryness and the residue was treated with sat. ammonium chloride (20 mL) and EtOAc (20 mL). The organic layer was separated and the aqueous layer was further extracted with EtOAc (2×20 mL). The combined organic layers were dried with sodium sulfate, filtered, and concentrated to dryness. The residue was subjected to FCC to give the title compound (84 mg, 83%). MS (ESI): mass calcd. for C29H26BrN3O3, 543.12; m/z found, 544.2 [M+H]+. 1H NMR (500 MHz, CD3OD) δ 9.00 (d, J=8.7, 1H), 8.32 (d, J=8.5, 1H), 8.26 (d, J=8.4, 1H), 8.15-8.08 (m, 2H), 7.94-7.88 (m, 1H), 7.59 (d, J=8.8, 1H), 7.57-7.51 (m, 3H), 7.41 (dd, J=9.1, 2.4, 1H), 7.19 (d, J=8.6, 2H), 5.82 (s, 2H), 5.76 (s, 2H), 3.53 (s, 2H), 1.42 (s, 6H).

후처리

  1. concentrationthe solution was concentrated to dryness
  2. additionthe residue was treated with sat. ammonium chloride (20 mL) and EtOAc (20 mL)
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was further extracted with EtOAc (2×20 mL)
  5. dry with materialThe combined organic layers were dried with sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated to dryness

출처 및 근거

ORD 기록
ord-80c09c6cbb6042508f56471b34d9f27d
출처 데이터셋
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09265770B2

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