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Methyl iodide → (2R,5R)-4-[2-(6-Chloro-3,3-dimethyl-2,3-dihydro-indol-1-yl)-2-oxo-ethyl]-5-methoxymethyl-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

HRID 1475279
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HRID 1475279 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][C@H:12]([CH2:14][OH:15])[N:11]([CH2:16][C:17]([N:19]2[C:27]3[C:22](=[CH:23][CH:24]=[C:25]([Cl:28])[CH:26]=3)[C:21]([CH3:30])([CH3:29])[CH2:20]2)=[O:18])[CH2:10][C@H:9]1[CH3:31])=[O:7])([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].[CH3:34]I>CN(C=O)C>[C:1]([O:5][C:6]([N:8]1[CH2:13][C@H:12]([CH2:14][O:15][CH3:34])[N:11]([CH2:16][C:17]([N:19]2[C:27]3[C:22](=[CH:23][CH:24]=[C:25]([Cl:28])[CH:26]=3)[C:21]([CH3:30])([CH3:29])[CH2:20]2)=[O:18])[CH2:10][C@H:9]1[CH3:31])=[O:7])([CH3:4])([CH3:2])[CH3:3]
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참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 86723923(2R,5R)-4-[2-(6-Chloro-3,3-dimethyl-2,3-dihydro-indol-1-yl)-2-oxo-ethyl]-5-hydroxymethyl-2-methyl-piperazine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 86723925(2R,5R)-4-[2-(6-Chloro-3,3-dimethyl-2,3-dihydro-indol-1-yl)-2-oxo-ethyl]-5-methoxymethyl-2-methyl-piperazine-1-carboxylic acid tert-butyl ester수율 19.5%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a cooled solution of (2R,5R)-4-[2-(6-chloro-3,3-dimethyl-2,3-dihydro-indol-1-yl)-2-oxo-ethyl]-5-hydroxymethyl-2-methyl-piperazine-1-carboxylic acid tert-butyl ester (100 mg, 0.22 mmol) in DMF (1.1 mL) at 0° C. (ice bath) was added sodium hydride (60%, 10 mg, 0.24 mmol). After stirring for 1 h, methyl iodide (15 μL, 0.24 mmol) was added and the reaction stirred for 30 mins. Reaction was allowed to warm gently to ambient temperature over 18 h. The solvent was removed in vacuo and residue was purified by column chromatography on silica gel (gradient elution, 0-100% EtOAc/petrol), to give the title compound (20 mg, 19%) as a colourless oil. 1H NMR (Me-d3-OD): 8.14 (1H, s), 7.27-7.13 (1H, m), 7.09 (1H, dd), 4.19 (1H, dd), 4.13-3.84 (3H, m), 3.78-3.44 (3H, m), 3.44-3.38 (1H, m), 3.36 (3H, s), 3.29 (1H, d), 3.07-2.94 (1H, m), 2.94-2.81 (1H, m), 2.66 (1H, dd), 1.48 (9H, s), 1.37 (6H, s), 1.34-1.20 (3H, m).

후처리

  1. stirringthe reaction stirred for 30 mins
  2. customReaction
  3. customThe solvent was removed in vacuo and residue
  4. customwas purified by column chromatography on silica gel (gradient elution, 0-100% EtOAc/petrol)

출처 및 근거

ORD 기록
ord-1c85818fd34f4b0facb2aa27cf4ffff5
출처 데이터셋
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09018214B2

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