A compound selected from the group consisting of: 5-methyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(3,5-dimethyl-benzoyl)-N'-(1-ethyl-2,2-dimethyl-propyl)-hydrazide; 5-methyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethyl-benzoyl)-hydrazide; 5-methyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethoxy-4-methyl-benzoyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(3,5-dimethyl-benzoyl)-N'-(1-ethyl-2,2-dimethyl-propyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(3,5-dimethoxy-4-methyl-benzoyl)-N'-(1-ethyl-2,2-dimethyl-propyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethyl-benzoyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethoxy-4-methyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(3-methoxy-2-methylbenzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-pentyl)-N'-(4-ethyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(2,2-dimethyl-1-phenyl-propyl)-N'-(4-ethyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-pentyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; and 3,5-dimethoxy-4-methyl-benzoic acid N-(1-tert-butyl-pentyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide. 5-methyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(3,5-dimethyl-benzoyl)-N'-(1-ethyl-2,2-dimethyl-propyl)-hydrazide; 5-methyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethyl-benzoyl)-hydrazide; 5-methyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethoxy-4-methyl-benzoyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(3,5-dimethyl-benzoyl)-N'-(1-ethyl-2,2-dimethyl-propyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(3,5-dimethoxy-4-methyl-benzoyl)-N'-(1-ethyl-2,2-dimethyl-propyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethyl-benzoyl)-hydrazide; 5-ethyl-2,3-dihydro-benzo[1,4]dioxine-6-carboxylic acid N'-(1-tert-butyl-butyl)-N'-(3,5-dimethoxy-4-methyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(3-methoxy-2-methylbenzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-ethyl-2,2-dimethyl-propyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethoxy-4-methyl-benzoic acid N-(1-tert-butyl-butyl)-N'-(2-ethyl-3-methoxy-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-pentyl)-N'-(4-ethyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(2,2-dimethyl-1-phenyl-propyl)-N'-(4-ethyl-benzoyl)-hydrazide; 3,5-dimethyl-benzoic acid N-(1-tert-butyl-pentyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide; and 3,5-dimethoxy-4-methyl-benzoic acid N-(1-tert-butyl-pentyl)-N'-(3-methoxy-2-methyl-benzoyl)-hydrazide.