1-(Pyridazin-3-yl)piperidin-4-amine → 2-tert-Butyl-5-phenyl-4-[(1-pyridazin-3-ylpiperidin-4-yl)amino]isothiazol-3(2H)-one 1,1-dioxide

HRID 2239693

반응식

HRID 2239693 반응식
[C:1]([N:5]1[C:9](=[O:10])[C:8](Cl)=[C:7]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[S:6]1(=[O:19])=[O:18])([CH3:4])([CH3:3])[CH3:2].[N:20]1[CH:25]=[CH:24][CH:23]=[C:22]([N:26]2[CH2:31][CH2:30][CH:29]([NH2:32])[CH2:28][CH2:27]2)[N:21]=1>CN(C=O)C.O>[C:1]([N:5]1[C:9](=[O:10])[C:8]([NH:32][CH:29]2[CH2:30][CH2:31][N:26]([C:22]3[N:21]=[N:20][CH:25]=[CH:24][CH:23]=3)[CH2:27][CH2:28]2)=[C:7]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[S:6]1(=[O:19])=[O:18])([CH3:4])([CH3:3])[CH3:2]

참가 물질

5

반응물 2

HCID 624820041-(Pyridazin-3-yl)piperidin-4-amineHCID 672426272-tert-Butyl-4-chloro-5-phenylisothiazol-3(2H)-one 1,1-dioxide

생성물 1

HCID 672418232-tert-Butyl-5-phenyl-4-[(1-pyridazin-3-ylpiperidin-4-yl)amino]isothiazol-3(2H)-one 1,1-dioxide수율 31.1%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

반응 조건

온도
120 °C

실험 절차

2-tert-Butyl-4-chloro-5-phenylisothiazol-3(2H)-one 1,1-dioxide (0.240 g, 0.80 mmol), 1-pyridazin-3-ylpiperidin-4-amine (0.257 g, 1.02 mmol) and TEA (0.324 g, 3.2 mmol), was dissolved in dry DMF (10 ml) and heated in a microwave reactor at 120° C. for 30 mins. The reaction mixture was diluted with water (300 ml) and extracted with EtOAc (2×150 ml). The combined organic phases were dried (MgSO4), filtered and evaporated and the residue was purified by silica gel column chromatography using EtOAc as eluant, to give the title compound (0.110 g, 31%). 1H NMR (500 MHz, CDCl3): δ 8.55-8.52 (m, 1H), 7.55-7.50 (m, 2H), 7.47-7.42 (m, 3H), 7.19-7.14 (m, 1H), 6.85-6.82 (m, 1H), 5.21 (d, 1H), 4.17-4.11 (m, 2H), 3.22-3.13 (m, 1H), 2.60-2.52 (m, 2H), 1.80-1.73 (m, 2H), 1.72 (s, 9H), 1.42-1.32 (m, 2H); 13C NMR (125 MHz, CDCl3): δ 159.5, 143.1, 133.8, 131.6, 129.9, 128.7, 127.4, 125, 112.8, 107.2, 61.6, 50.1, 43.6, 31.7, 27.5; Mass Spectrum: M−H+ 442.

후처리

  1. extractionextracted with EtOAc (2×150 ml)
  2. dry with materialThe combined organic phases were dried (MgSO4)
  3. filtrationfiltered
  4. customevaporated
  5. customthe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-8b03c6d3157c49c78e0ac51ca0968a9b
출처 데이터셋
uspto-grants-2010_05
특허 번호
US07723333B2

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