2-Methanesulfonylbenzene-1-sulfonyl chloride → N-(3-cyano-1H-indazol-5-yl)-2-methylsulfonylbenzenesulfonamide

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Reaction Steps

N-(3-Cyano-1H-indazol-5-yl)-2-methylsulfonylbenzenesulfonamide can be obtained as described in Example 2 from 0.55 g of 3-cyano-5-amino-1H-indazole, 10 ml of pyridine and 0.88 g of 2-methylsulfonylbenzenesulfonyl chloride. 0.15 g of N-(3-cyano-1H-indazol-5-yl)-2-methylsulfonylbenzenesulfonamide is thus obtained in the form of a yellow powder melting at 272° C. (analysis C15H12N4O4S2.0.85H2O, % calculated C, 47.87; H, 3.21; N, 14.88; S, 17.04. % found C, 47.88; H, 3.01; N, 14.75; S, 17.45).

Provenance & Evidence