| abstract |
The invention is directed to a N, N-substituted guanidine compound or a salt or solvate thereof according to formula (1), R 1 RNC(NH)NR 2 R 3 , wherein R 1 is methyl and R 2 is hydrogen. R 3 is a organic group comprising a halogen and thiomethyl substituted phenyl group. R is an organic group comprising a substituted aryl group Z wherein the substituent group is -Y-R 4 , wherein Y is a heteroatom chosen from the group consisting of O, S and N and R 4 is a fluorinated organic group. |