Patent ID: 7776920

Claim:
A compound of the formula: Structural formula No. Name “A1” N′-[2-(3,4-Difluorophenyl)-2-hydroxyacetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A2” N′-[2-Hydroxy-2-(3-phenoxyphenyl)acetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A3” N′-(2-Hydroxy-2-phenylacetyl)-2,4-dihydroxy-6-methyl- benzohydrazide “A4” N′-[2-Hydroxy-2-(3-chlorophenyl)acetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A5” N′-[2-Hydroxy-2-(3-trifluoromethylphenyl)acetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A6” N′-[2-Acetoxy-2-(3-chlorophenyl)acetyl]-2,4-dihydroxy- 6-methylbenzohydrazide “A7” N′-[2-Hydroxy-2-(3-fluorophenyl)acetyl]-2,4-dihydroxy- 6-methylbenzohydrazide “A8” N′-[2-Hydroxy-2-(3,5-difluorophenyl)acetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A9” N′-[2-Hydroxy-2-(2,3,4,5,6-pentafluorophenyl)acetyl]- 2,4-dihydroxy-6-methylbenzohydrazide “A10” N′-(2-Benzo-1,3-dioxol-2-hydroxyacetyl)-2,4- dihydroxy-6-methylbenzohydrazide “A11” N′-[2-hydroxy-2-(3-hydroxy-4-methoxyphenyl)acetyl]- 2,4-dihydroxy-6-methylbenzohydrazide “A12” N′-[2-Hydroxy-2-(3-chlorophenyl)acetyl]-2,4- dihydroxy-5-chlorobenzohydrazide “A13” N′-[2-Hydroxy-2-(3-chlorophenyl)acetyl]-3-chloro-2- ethyl-4-hydroxybenzohydrazide “A14” N′-[(R)-2-(3-Chlorophenyl)-2-hydroxyacetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A15” N′-[2-Hydroxy-2-(3-hydroxyphenyl)acetyl]-2-chloro- 4,6-dihydroxybenzohydrazide “A16” N′-[2-Hydroxy-2-(3-hydroxyphenyl)acetyl]-2-methyl- 4,6-dihydroxybenzohydrazide “A17” N′-[2-Hydroxy-2-(3-hydroxyphenyl)acetyl]-2-ethyl-4,6- dihydroxybenzohydrazide “A18” N′-(2-Hydroxy-2-phenylacetyl)-2-methyl-4,6-dihydroxy- benzohydrazide “A19” N′-[2-Hydroxy-2-(3-methylphenyl)acetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A20” N′-[2-Hydroxy-2-(3,4-difluorophenyl)acetyl]-2,4- dihydroxy-5-methylbenzohydrazide “A21” N′-[2-Formyloxy-2-(3,4-difluorophenyl)acetyl]-2,4- dihydroxy-6-methylbenzohydrazide “A22” N′[2-Hydroxy-2-(3,4-difluorophenyl)acetyl]-2,4- dihydroxy-6-ethylbenzohydrazide or “A23” N′-[2-Hydroxy-2-(3,4-difluorophenyl)acetyl]-4-hydroxy- 2-ethyl-3-methylbenzohydrazide or pharmaceutically usable salts or stereoisomers thereof, including mixtures thereof in all ratios.