反应详情

The 2-chloro-5-nitro-benzenesulfonamide intermediate (prepared as described in schemes 11 and 12) can be treated with a benzylic amine, such as benzyl amine, to displace the chloro moiety. Hydrogenation under standard conditions can be used to remove the benzylic group and to reduce the nitro group at the same time to afford the desired 2,5-diamino-benzenesulfonamide intermediate.

1. customto remove the benzylic group