Triethylamine → HCID 23206746, compound

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Reaction Steps

940 mg N-(dimethyloxophosphinyl-methyl)-N-[3-(2-amino-ethoxy)-5-methyl-phenyl]-2-methoxy-benzene sulfonamide, 400 mg (2.2 mmol) 3,4,5-trichloropyridazine and 0.31 ml (2.2 mmol) triethylamine in 20 ml dry tetrahydrofuran were stirred for 2 h at 80° C., the solvent was removed in a vacuum, the residue was stirred with water, extracted three times with ethyl acetate, dried over sodium sulfate, filtered, the solvent was removed in a vacuum and 1.26 g (quant.) of a mixture of N-(dimethyloxophosphinyl-methyl)-N-{3-[2-(3,5-dichloropyridazin-4-ylamino)-ethoxy]-5-methylphenyl-}-2-methoxy-benzenesulfonamide and N-(dimethyloxophosphinyl-methyl)-N-{3-[2-(3,4-dichloropyridazin-5-ylamino)-ethoxy]-5-methylphenyl}-2-methoxy-benzenesulfonamide was obtained as an oil. MS (m/e)=573.

Provenance & Evidence