Dimethyl Sulfate → tert-Butyl 2-[1-methyl-5-(phenylsulfonyl)-1H-indol-3-yl]ethylcarbamate

HRID 412995노트

반응식

HRID 412995 반응식
[C:1]1([S:7]([C:10]2[CH:11]=[C:12]3[C:16](=[CH:17][CH:18]=2)[NH:15][CH:14]=[C:13]3[CH2:19][CH2:20][NH:21][C:22](=[O:28])[O:23][C:24]([CH3:27])([CH3:26])[CH3:25])(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:29]([O-])([O-])=O.[Cs+].[Cs+].S(OC)(OC)(=O)=O>CC(C)=O>[CH3:29][N:15]1[C:16]2[C:12](=[CH:11][C:10]([S:7]([C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)(=[O:8])=[O:9])=[CH:18][CH:17]=2)[C:13]([CH2:19][CH2:20][NH:21][C:22](=[O:28])[O:23][C:24]([CH3:25])([CH3:27])[CH3:26])=[CH:14]1

참가 물질

5

반응물 3

HCID 6497Dimethyl SulfateHCID 10796Cesium carbonateHCID 10135626HCID 10135626, 화합물

생성물 1

HCID 10273245tert-Butyl 2-[1-methyl-5-(phenylsulfonyl)-1H-indol-3-yl]ethylcarbamate수율 68%

시약·촉매·용매 1

HCID 180Acetone용매

실험 절차

A solution of tert-butyl 2-[5-(phenylsulfonyl)-1H-indol-3-yl]ethylcarbamate (0.58 g, 1.46 mmol) in acetone (25.0 mL) was treated with Cs2CO3 (1.85 g, 5.68 mmol) and dimethyl sulfate (0.80 mL, 8.45 mmol). The reaction was stirred at room temperature for 3.5 hours then filtered. The filtrate was concentrated in vacuo and subjected to column chromatography (silica gel, 30% EtOAc/hexane) to give 0.41 g (68%) of a colorless solid as the title compound: mp 127.4-130.6° C.; 1H NMR (400 MHz, DMSO-d6) δ 8.22 (s, 1H), 7.93 (d, J=7.1 Hz, 1H), 7.65-7.55 (m, 5H), 7.35 (s, 1H), 6.93 (br, 1H), 3.77 (s, 3H), 3.20-3.18 (m, 2H), 2.86-2.82 (m, 2H), 1.37 (s, 9H); 13C NMR (100 MHz, DMSO-d6) δ 155.5, 142.7, 138.3, 132.8, 130.5, 130.0, 129.4, 127.0, 126.7, 119.7, 119.3, 113.4, 110.7, 77.4, 41.1, 32.5, 28.1, 24.9; IR (diffuse reflectance) 1676, 1531, 1450, 1366, 1316, 1303, 1286, 1177, 1152, 1144, 1103, 797, 726, 692, 626 cm−1; HRMS (FAB) calcd for C22H26N2O4S+H 414.1613, found 414.1619; Anal. Calcd for C22H26N2O4S: C, 63.74; H, 6.32; N, 6.76. Found: C, 63.78; H, 6.39; N, 6.80.

후처리

  1. filtrationthen filtered
  2. concentrationThe filtrate was concentrated in vacuo

출처 및 근거

ORD 기록
ord-e9607af1ee4e41c49d1a04e37bae6638
출처 데이터셋
uspto-grants-2003_05
특허 번호
US06565829B2

반응 노트

불러오는 중…