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Methanol → tert-butyl 2-{[1-(chloromethyl)-5-nitro-1,2-dihydro-3H-benzo[e]indol-7-yl]sulfonyl}hydrazinecarboxylate

HRID 2238376
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HRID 2238376 반응식
[C:1]([O:5][C:6]([CH3:9])([CH3:8])[CH3:7])(=[O:4])[NH:2][NH2:3].[Cl:10][CH2:11][CH:12]1[C:20]2[C:19]3[CH:21]=[CH:22][C:23]([S:25](Cl)(=[O:27])=[O:26])=[CH:24][C:18]=3[C:17]([N+:29]([O-:31])=[O:30])=[CH:16][C:15]=2[N:14](C(=O)C(F)(F)F)[CH2:13]1.C([O-])([O-])=O.[Cs+].[Cs+].CO>O>[Cl:10][CH2:11][CH:12]1[C:20]2[C:19]3[CH:21]=[CH:22][C:23]([S:25]([NH:3][NH:2][C:1]([O:5][C:6]([CH3:9])([CH3:8])[CH3:7])=[O:4])(=[O:26])=[O:27])=[CH:24][C:18]=3[C:17]([N+:29]([O-:31])=[O:30])=[CH:16][C:15]=2[NH:14][CH2:13]1
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참가 물질

6

반응물 4

HCID 887MethanolHCID 10796Cesium carbonateHCID 70091tert-Butyl carbazateHCID 866202591-(chloromethyl)-5-nitro-3-(trifluoroacetyl)-1,2-dihydro-3H-benzo[e]indole-7-sulfonyl chloride

생성물 1

HCID 68691139tert-butyl 2-{[1-(chloromethyl)-5-nitro-1,2-dihydro-3H-benzo[e]indol-7-yl]sulfonyl}hydrazinecarboxylate수율 68.5%

시약·촉매·용매

1
HCID 962Water용매

실험 절차

t-Butyl carbazate (86 mg, 0.65 mmol) was added to a solution of 116 (107 mg, 0.23 mmol) in ThF (5 mL) and the mixture was stirred at room temperature for 16 h. Cs2CO3 (150 mg, 0.46 mmol) and MeOH (2 mL) were added and the mixture was stirred for a further 2 h. The mixture was diluted with water and extracted with CH2Cl2 (×2). The combined extracts were dried and evaporated and the residue was purified by chromatography, eluting with EtOAc/petroleum ether (1:4 then 2:3). The product was recrystallised from EtOAc/petroleum ether to give tert-butyl 2-{[1-(chloromethyl)-5-nitro-1,2-dihydro-3H-benzo[e]indol-7-yl]sulfonyl}hydrazinecarboxylate (119) (72 mg, 67%) as an orange crystalline solid: mp 179° C. (dec.); 1H NMR [(CD3)2SO] δ 9.60 (br s, 1H), 9.18 (v br s, 1H), 8.54 (d, J=1.4 Hz, 1H), 8.00 (d, J=8.9 Hz, 1H), 7.75 (s, 1H), 7.74 (dd, J=8.9, 1.8 Hz, 1H), 6.74 (s, 1H), 4.29-4.22 (m, 1H), 3.94-3.85 (m, 2H), 3.80 (dd, J=11.0, 8.0 Hz, 1H), 3.74 (dd, J=10.5, 3.0 Hz, 1H), 1.10 (br s, 9H). HRMS (FAB) calcd. for C18H2135ClN4O6S (M+) m/z 456.0870, found 456.0877.

후처리

  1. stirringthe mixture was stirred for a further 2 h
  2. extractionextracted with CH2Cl2 (×2)
  3. customThe combined extracts were dried
  4. customevaporated
  5. customthe residue was purified by chromatography
  6. washeluting with EtOAc/petroleum ether (1:4
  7. customThe product was recrystallised from EtOAc/petroleum ether

출처 및 근거

ORD 기록
ord-d54a4b4a90b24e599508d15c9f414994
출처 데이터셋
uspto-grants-2010_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07718688B2

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