Dichloromethane → N-(3-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-yl)-4-t-pentylbenzenesulfonamide

HRID 1406554Notes

Reaction equation

HRID 1406554 reaction equation
[C:1]([C:6]1[CH:11]=[CH:10][C:9]([S:12](Cl)(=[O:14])=[O:13])=[CH:8][CH:7]=1)([CH2:4][CH3:5])([CH3:3])[CH3:2].[CH3:16][C:17]1[CH:21]=[C:20]([NH2:22])[N:19]([C:23]2[CH:32]=[CH:31][CH:30]=[C:29]3[C:24]=2[CH:25]=[CH:26][CH:27]=[N:28]3)[N:18]=1.ClCCl>N1C=CC=CC=1>[CH3:16][C:17]1[CH:21]=[C:20]([NH:22][S:12]([C:9]2[CH:10]=[CH:11][C:6]([C:1]([CH2:4][CH3:5])([CH3:3])[CH3:2])=[CH:7][CH:8]=2)(=[O:14])=[O:13])[N:19]([C:23]2[CH:32]=[CH:31][CH:30]=[C:29]3[C:24]=2[CH:25]=[CH:26][CH:27]=[N:28]3)[N:18]=1

Participants

5

Reactant 3

HCID 6344DichloromethaneHCID 222819764-(2-Methylbutan-2-yl)benzene-1-sulfonyl chlorideHCID 866945143-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-amine

Product 1

HCID 86694518N-(3-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-yl)-4-t-pentylbenzenesulfonamideYield 55%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 4-t-pentylbenzenesulfonyl chloride (0.13 g, 0.53 mmol) and 3-methyl-1-(quinolin-5-yl)-1H-pyrazol-5-amine (prepared from Example 4 step b, 0.10 g, 0.44 mmol) in pyridine (1.0 mL) was heated at 80° C. for 3 h with stirring. After cooling to room temperature, dichloromethane was added to the reaction mixture and washed with 1 M aqueous sodium hydrogen sulfate (1 mL). The aqueous layer was further extracted with dichloromethane (2×5 mL), and the combined organic layers were dried (Na2SO4), filtered, and concentrated in vacuo. The crude residue was purified by reverse phase HPLC(C18 column, acetonitrile-H2O with 0.1% TFA as eluent) to give the title compound as a white solid (0.11 g, 0.24 mmol, 55%). 1H NMR (400 MHz, CDCl3) δ 8.96 (dd, J=1.6, 4.8 Hz, 1H), 8.20 (d, J=8.8 Hz, 1H), 8.13 (d, J=8.4 Hz, 1H), 7.75 (d, J=7.6 Hz, 1H), 7.71 (s, 1H), 7.69 (s, 1H), 7.54 (dd, J=4.8, 8.4 Hz, 1H), 7.46-7.43 (m, 3H), 6.02 (s, 1H), 2.32 (s, 3H), 1.70 (q, J=7.2 Hz, 2H), 1.34 (s, 6H), 0.70 (t, J=7.2 Hz, 3H); MS: (ES) m/z calculated for C24H27N4O2S [M+H]+ 435.2. found 435.1.

Workup

  1. temperatureAfter cooling to room temperature
  2. washwashed with 1 M aqueous sodium hydrogen sulfate (1 mL)
  3. extractionThe aqueous layer was further extracted with dichloromethane (2×5 mL)
  4. dry with materialthe combined organic layers were dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude residue was purified by reverse phase HPLC(C18 column, acetonitrile-H2O with 0.1% TFA as eluent)

Sources & evidence

ORD record
ord-1ffb8664e3c34a6d8c32fbddc7566625
Source dataset
uspto-grants-2014_12
Patent number
US08916601B2

Reaction notes

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