Benzenesulfonyl chloride → N-[3-Cyano-5-methyl-4-(4-phenoxy-phenylamino)-pyrrolo[1,2-b]pyridazin-6-yl]-benzenesulfonamide

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Reaction Steps

To 6-Amino-5-methyl-4-(4-phenoxy-phenylamino)-pyrrolo[1,2-b]pyridazine-3-carbonitrile hydrochloride (8.2 mg, 0.021 mmol) and DIEA (5.4 mg, 0.042 mmol) in dichloromethane (1.0 ml) was added benzenesulfonyl chloride (3.7 mg, 0.021 mmol) at RT for 2 hrs. The reaction mixture was quenched with pH 7 phosphate buffer (2 ml), dried over Na2SO4, concentrated and purified by silica gel flash chromatography to isolate 377 as a yellow film (3 mg, 29%). [M+H]+=496.1.

Provenance & Evidence