HCID 20775774, compound → HCID 20775777, compound

HRID 1015653Notes

Reaction equation

HRID 1015653 reaction equation
[C:1]([O:5][C:6]([C:8]1[S:9][C:10](Br)=[CH:11][C:12]=1[NH:13][S:14]([C:17]1[C:18]([CH3:23])=[CH:19][CH:20]=[CH:21][CH:22]=1)(=[O:16])=[O:15])=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:25][N:26]([CH3:39])[S:27]([N:30]1[CH:34]=[CH:33][C:32]([Sn](C)(C)C)=[N:31]1)(=[O:29])=[O:28]>C1(C)C=CC=CC=1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:1]([O:5][C:6]([C:8]1[S:9][C:10]([C:32]2[CH:33]=[CH:34][N:30]([S:27](=[O:29])(=[O:28])[N:26]([CH3:25])[CH3:39])[N:31]=2)=[CH:11][C:12]=1[NH:13][S:14]([C:17]1[C:18]([CH3:23])=[CH:19][CH:20]=[CH:21][CH:22]=1)(=[O:16])=[O:15])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 20775774HCID 20775774, compoundHCID 20775779HCID 20775779, compound

Product 1

HCID 20775777HCID 20775777, compoundYield 66.5%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent2×

Conditions

Temperature
80 °C

Procedure

To a stirred solution of 5-Bromo-3-(toluene-2-sulfonylamino)-thiophene-2-carboxylic acid tert-butyl ester (43 mg, 0.1 mmol) in toluene (3.0 mL) was sequentially added a solution of Pd(PPh3)4 (12 mg, 0.01 mmol) in toluene (1.0 mL) and 3-Trimethylstannanyl-pyrazole-1-sulfonic acid dimethylamide (prepared according to J. Med. Chem (1998), 41, p-2019) (75 mg, 0.2 mmol, 2.0 eq), and heated the resulting overnight at 80° C. It was then cooled to room temperature, the solvent was evaporated and the crude was purified on preparative TLC using EtOAc/hexane (1:5). 5-(1-Dimethylsulfamoyl-1H-pyrazol-3-yl)-3-(toluene-2-sulfonylamino)-thiophene-2-carboxylic acid tert-butyl ester (35 mg, 66.5% yield) was isolated. 1H NMR (CDCl3, 400 MHz) 9.93 (s, 1H), 8.11 (d, J=0.7 Hz, 1H), 8.02 (dd, J=6.7, 1.32 Hz, 1H), 7.84 (d, J=0.7 Hz, 1H), 7.45 (dt, J=7.5, 1.3 Hz, 1H), 7.31 (t, J=8.2 Hz, 2H), 7.26 (d, J=1.0 Hz, 1H), 2.98 (s, 6H), 2.7 (s, 3H), 1.55 (s, 9H).

Workup

  1. temperatureIt was then cooled to room temperature
  2. customthe solvent was evaporated
  3. customthe crude was purified on preparative TLC

Sources & evidence

ORD record
ord-1aa4ff822629441990a8e671a7e85981
Source dataset
uspto-grants-2011_07
Patent number
US07985769B2

Reaction notes

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