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Diisopropylethylamine → 4-[4-(6-Chloro-benzo[b]thiophene-2-sulfonyl)-2-oxo-piperazin-1-ylmethyl]-piperidine-1-carboxylic acid tert-butyl ester

HRID 1433087
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HRID 1433087 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][N:15]2[CH2:20][CH2:19][NH:18][CH2:17][C:16]2=[O:21])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(C(C)C)CC)(C)C.[Cl:31][C:32]1[CH:33]=[CH:34][C:35]2[CH:39]=[C:38]([S:40](Cl)(=[O:42])=[O:41])[S:37][C:36]=2[CH:44]=1>C(Cl)Cl.CC#N>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][N:15]2[CH2:20][CH2:19][N:18]([S:40]([C:38]3[S:37][C:36]4[CH:44]=[C:32]([Cl:31])[CH:33]=[CH:34][C:35]=4[CH:39]=3)(=[O:42])=[O:41])[CH2:17][C:16]2=[O:21])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 81531DiisopropylethylamineHCID 151586416-Chlorobenzo[b]thiophene-2-sulfonyl chlorideHCID 234475144-(2-Oxo-piperazin-1-ylmethyl)-piperidine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 690254374-[4-(6-Chloro-benzo[b]thiophene-2-sulfonyl)-2-oxo-piperazin-1-ylmethyl]-piperidine-1-carboxylic acid tert-butyl ester

시약·촉매·용매 2

HCID 6342
Acetonitrile
용매
HCID 6344Dichloromethane용매2회

실험 절차

To a solution of 4-(2-oxo-piperazin-1-ylmethyl)-piperidine-1-carboxylic acid tert-butyl ester (1.44 g, 4.8 mmol) in CH2Cl2 (75 mL) and MeCN (10 mL) is added diisopropylethylamine (1.3 mL, 4.8 mmol) followed by 6-chloro-benzo[b]thiophene-2-sulfonyl chloride (1.29 g, 4.8 mmol), and the reaction is allowed to stir 16 h. The reaction is diluted with CH2Cl2 and washed with 1N HCl and NaHCO3, dried and concentrated. The residue is purified by column chromatography (silica, 40% EtOAc/CH2Cl2) to provide 4-[4-(6-chloro-benzo[b]thiophene-2-sulfonyl)-2-oxo-piperazin-1-ylmethyl]-piperidine-1-carboxylic acid tert-butyl ester. 1H NMR (300 MHz, CDCl3) δ 7.88-7.83 (m, 3H), 7.47 (dd, 1H), 4.1 (br, 2H), 3.86 (s, 2H), 3.46 (bs, 4H), 3.25 (br, 2H), 2.61 (t, 2H), 1.87-1.75 (m, 1H), 1.51 (d, 2H), 1.41 (s, 9H), 1.10 (ddd, 2H); MS (Ion spray) 528 (M+H)+.

후처리

  1. washwashed with 1N HCl and NaHCO3
  2. customdried
  3. concentrationconcentrated
  4. customThe residue is purified by column chromatography (silica, 40% EtOAc/CH2Cl2)

출처 및 근거

ORD 기록
ord-8b06f50580be4d87aa60137e6f84df57
출처 데이터셋
uspto-grants-2009_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07612075B2

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