Patent ID: 7776830

Claim:
A glucopyranosyl-substituted benzonitrile derivative of formula I wherein R 3 denotes hydrogen, fluorine, chlorine, bromine, iodine, methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, iso-butyl, tert-butyl, 3-methyl-but-1-yl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 1-hydroxy-cyclopropyl, 1-hydroxy-cyclobutyl, 1-hydroxy-cyclopentyl, 1-hydroxy-cyclohexyl, difluoromethyl, trifluoromethyl, pentafluoroethyl, 2-hydroxyl-ethyl, hydroxymethyl, 3-hydroxy-propyl, 2-hydroxy-2-methyl-prop-1-yl, 3-hydroxy-3-methyl-but-1-yl, 1-hydroxy-1-methyl-ethyl, 2,2,2-trifluoro-1-hydroxy-1-methyl-ethyl, 2,2,2-trifluoro-1-hydroxy-1-trifluoromethyl-ethyl, 2-methoxy-ethyl, 2-ethoxy-ethyl, difluoromethyloxy, trifluoromethyloxy, 2-methyloxy-ethyloxy, methylsulfinyl, methlysulfonyl, ethylsulfinyl, ethylsulfonyl, trimethylsilyl, or cyano; or a derivative thereof wherein one or more hydroxyl groups of the β-D-glucopyranosyl group are acylated with a group selected from (C 1-18 -alkyl)carbonyl, (C 1-18 -alkyl)oxycarbonyl, phenylcarbonyl and phenyl-(C 1-3 -alkyl)-carbonyl.