| abstract |
The present invention relates to compounds of general formula (I).n n n n n n n n Wherein R is C 1-15 alkyl, X is hydrogen, fluorine, or chlorine, m and n are independently 1 or 0, W is C 1-15 alkyl or alkoxy, CN or halogen, ring A And B is independently phenyl, specialty fluoro- or chloro-substituted phenyl, trans-cyclohexyl, pyridyl, pyrimidyl, or dioxanyl.n n n Preferred embodiments are those in which R is C 3-8 alkyl and W is C 3-8 when W is alkyl or alkoxy. W is preferably CN when m is 0 and W is preferably alkyl when m is 1. |