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CAS No. : | 1063733-41-4 | MDL No. : | MFCD20784227 |
Formula : | C11H13N3O2S | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | ZEZFQTOAJHHYCZ-UHFFFAOYSA-N |
M.W : | 251.31 | Pubchem ID : | 57732216 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
General procedure: Under the protection of nitrogen at -10 ,Sulfonyl chloride (6.15mL, 76.132mmol) in anhydrous dichloromethane (60mL)The solution was slowly added dropwise to a solution of DIPEA (24.6g, 190.330mmol) in dry methylene chloride (80mL), slowly warmed to room temperature and reacted for 30 minutes,N- (2,4-dimethoxybenzyl) -1,2,4-thiadiazol-5-amine (9.57g, 38.066mmol) was added, the temperature was raised to reflux for 10 hours, and the solvent was distilled off under reduced pressureThe residue was dissolved in acetonitrile (100mL) and added at 0 C4-bromo-1H-indazole (5.0g, 25.377mmmol) and anhydrous potassium carbonate (7.72g, 55.829mmol), heated to 60 for 20 hours, after the reaction,It was concentrated under reduced pressure, and the residue was dissolved in ethyl acetate (300 mL), washed with water (90 mL x 2), saturated ammonium chloride solution (90 mL x 2), dried over anhydrous sodium sulfate, filtered, and concentrated under reduced pressure. Silica gel column chromatography purification (eluent: petroleum ether / ethyl acetate = 6: 1v / v),4-Bromo-N- (2,4-dimethoxybenzyl) -N- (1,2,4-thiadiazol-5-yl) -1H-indazole-1-benzenesulfonamide was obtained, Rate 20.4%, |
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