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process for the production of n - (4 '- chlorine - 3' - sulfamoyl - benzolsulfonyl) - n - methyl - 2 - aminomethyl - 2 - methyl tetrahydrofuran
process for the production of n - (4 '- chlorine - 3' - sulfamoyl - benzolsulfonyl) - n - methyl - 2 - aminomethyl - 2 - methyl tetrahydrofuran