Patent ID: 8575173

Claim:
Compound having the following formula I wherein: R 1 can be independently selected from the group consisting of hydrogen atom, C 1 -C 3 alkyl, phenyl, benzyl, benzoyl, benzensulfonyl, C 1 -C 3 alkylcarbonyl, C 3 -C 7 cycloalkyl, the formula II, III and IV; R 10 , R 11 and R 12 can be independently selected from the group consisting of hydrogen atom, C 1 -C 3 alkyl, phenyl, and benzyl; all benzene groups included as part of R 1 can have a plurality of substituents independently selected from the group consisting of C 1 -C 3 alkyl, C 1 -C 2 haloalkyl, halogen atom and cyano; R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 and R 9 can be independently selected from hydrogen atom and C 1 -C 3 alkyl; R 6 and R 7 , R 8 and R 9 can be independently selected as carbonyl group; wherein said halogen is selected from the group consisting of fluorine, chlorine and bromine atom.