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Hydrochloric Acid → 3-[3-(4-Methyl-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-propionic acid

HRID 1747324
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HRID 1747324 반응식
O.[OH-].[Li+].C[O:5][C:6](=[O:30])[CH2:7][CH2:8][N:9]1[C:13]2[CH:14]=[CH:15][CH:16]=[CH:17][C:12]=2[N:11]([CH2:18][C:19]2[C:20]3[C:27]([CH3:28])=[CH:26][CH:25]=[CH:24][C:21]=3[S:22][CH:23]=2)[C:10]1=[O:29].Cl>O.CO>[CH3:28][C:27]1[C:20]2[C:19]([CH2:18][N:11]3[C:12]4[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=4[N:9]([CH2:8][CH2:7][C:6]([OH:30])=[O:5])[C:10]3=[O:29])=[CH:23][S:22][C:21]=2[CH:24]=[CH:25][CH:26]=1
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참가 물질

6

반응물 3

HCID 313Hydrochloric AcidHCID 168937Lithium hydroxide, monohydrateHCID 594976093-[3-(4-Methyl-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-propionic acid methyl ester

생성물 1

HCID 566667203-[3-(4-Methyl-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-propionic acid수율 97%

시약·촉매·용매 2

HCID 887
Methanol
용매
HCID 962Water용매2회

실험 절차

Lithium hydroxide monohydrate (99 mg, 2.4 mmol) is dissolved in water (12 mL) and this solution is added into 3-[3-(4-Methyl-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-propionic acid methyl ester (600 mg, 1.6 mmol) in methanol (12 mL) at room temperature. The mixture is stirred for 2 hr and then 1.0 M HCl aqueous solution (3 mL) is added along with water (100 mL). Then the mixture is extracted with EtOAc (3×100 mL) and the organic layers are combined, dried over MgSO4 and concentrated to give about 560 mg (97%) of 3-[3-(4-Methyl-benzo[b]thiophen-3-ylmethyl)-2-oxo-2,3-dihydro-benzimidazol-1-yl]-propionic acid which is used in the next step without further purification.

후처리

  1. extractionThen the mixture is extracted with EtOAc (3×100 mL)
  2. dry with materialdried over MgSO4
  3. concentrationconcentrated

출처 및 근거

ORD 기록
ord-bb25024f62114d5085f3209b7b2890db
출처 데이터셋
uspto-grants-2015_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09150556B2

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