| 摘要 |
The invention relates to compounds of the formula (I) wherein R<1> et R<2>, which may be the same or different, represent hydrogen or a residue after removal of 1 hydrogen atom from a straight, branched or cyclic, saturated or unsaturated, C1-C6-hydrocarbon; or R<1> and R<2>, taken together with the carbon atom to which they are attached (marked with an asterisk in formula (I), can form a C3-C8 carbocyclic ring; Q represents a diradical residue after removal of 2 hydrogen atoms from a straight, branched or cyclic, saturated or unsaturated C1-C8-hydrocarbon substituted with one or more chlorine or bromine atoms and/or substituted with one or more alkyl or alkoxy groups; R<1>, R<2> and/or Q is optionally substituted with one or more fluorine atoms; m is 0, 1 or 2 and n is 0 or 1. |
