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Sodium triacetoxyborohydride → methyl 4-[(1S)-1-[[(3R)-2-(2-(4-fluorophenoxy)ethyl)-3,4-dihydro-1H-isoquinoline-3-carbonyl]amino]ethyl]benzoate

HRID 2205307
ノート
印刷プレビュー

反応式

HRID 2205307 の反応式
Cl.[CH2:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[CH2:5][C@H:4]([C:12]([NH:14][C@H:15]([C:17]2[CH:26]=[CH:25][C:20]([C:21]([O:23][CH3:24])=[O:22])=[CH:19][CH:18]=2)[CH3:16])=[O:13])[NH:3]1.[F:27][C:28]1[CH:37]=[CH:36][C:31]([O:32][CH2:33][CH:34]=O)=[CH:30][CH:29]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[F:27][C:28]1[CH:37]=[CH:36][C:31]([O:32][CH2:33][CH2:34][N:3]2[C@@H:4]([C:12]([NH:14][C@H:15]([C:17]3[CH:18]=[CH:19][C:20]([C:21]([O:23][CH3:24])=[O:22])=[CH:25][CH:26]=3)[CH3:16])=[O:13])[CH2:5][C:6]3[C:11](=[CH:10][CH:9]=[CH:8][CH:7]=3)[CH2:2]2)=[CH:30][CH:29]=1
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 5049666Sodium triacetoxyborohydrideHCID 110518692-(4-Fluorophenoxy)acetaldehydeHCID 118876958methyl 4-[(1S)-1-[[(3R)-1,2,3,4-tetrahydroisoquinoline-3-carbonyl]amino]ethyl]benzoate hydrochloride

生成物 1

HCID 118876972methyl 4-[(1S)-1-[[(3R)-2-(2-(4-fluorophenoxy)ethyl)-3,4-dihydro-1H-isoquinoline-3-carbonyl]amino]ethyl]benzoate収率 54.2%

試薬・触媒・溶媒 1

HCID 11
1,2-Dichloroethane
溶媒

実験手順

To a mixture of methyl 4-[(1S)-1-[[(3R)-1,2,3,4-tetrahydroisoquinoline-3-carbonyl]amino]ethyl]benzoate hydrochloride (800 mg, 2.13 mmol) and 2-(4-fluorophenoxy)acetaldehyde (493 mg, 3.2 mmol) in 1,2-dichloroethane (10.7 mL), add sodium triacetoxyborohydride (633 mg, 2.99 mmol) and stir the mixture at room temperature overnight. Add saturated aqueous NaHCO3 (25 mL), and extract the aqueous layer with ethyl acetate (2×25 mL). Wash the combined organic layers with saturated aqueous NaCl (25 mL), dry the organic phase over MgSO4, filter, and concentrate the filtrate under reduced pressure. Subject the resulting crude material to flash chromatography on silica gel using a 0% to 60% EtOAc/hexanes gradient. Consolidate the fractions containing the product, and concentrate them under reduced pressure to furnish the title compound as a colorless foam (550 mg, 54% yield). Mass spectrum (m/z): 477 ([M+H]+).

後処理

  1. extractionAdd saturated aqueous NaHCO3 (25 mL), and extract the aqueous layer with ethyl acetate (2×25 mL)
  2. washWash the combined organic layers with saturated aqueous NaCl (25 mL)
  3. dry with materialdry the organic phase over MgSO4
  4. filtrationfilter
  5. concentrationconcentrate the filtrate under reduced pressure
  6. additioncontaining the product
  7. concentrationconcentrate them under reduced pressure

出典と根拠

ORDレコード
ord-8f27544b20bb4e3d952c6d338656317e
出典データセット
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09371289B2

反応ノート

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