Sodium Bicarbonate → 2-methylsulfonyl-N-(3-quinolin-8-yl-1H-indazol-5-yl)benzenesulfonamide

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2-Methylsulfonyl-N-(3-quinolin-8-yl-1H-indazol-5-yl)benzenesulfonamide can be obtained as described in Example 59 from 2 g of tert-butyl 3-iodo-5-(2-methylsulfonylbenzenesulfonylamino)indazole-1-carboxylate, 1.17 g of 8-quinolineboronic acid, 80 ml of dimethylformamide, 7.5 ml of a saturated aqueous sodium hydrogencarbonate solution and 98 mg of tetrakis(triphenylphosphine)palladium[0]. 30 mg of 2-methylsulfonyl-N-(3-quinolin-8-yl-1H-indazol-5-yl)benzenesulfonamide are thus obtained in the form of a pale yellow solid melting at 219° C. (analysis C23H18N4O4S2% calculated C, 57.73; H, 3.79; N, 11.71; O, 13.37; S, 13.4. % found C, 57.10; H, 4.11; N, 11.19; S, 11.94).

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