| abstract |
Bis-quaternary pyridinium-2-aldoxime salts of the formula <IMAGE> 2X(-) wherein R is -CO-R1, -CO-NR2R3 or -COOR4; R1 is alkyl of 1 - 6 carbon atoms, cyclohexyl, Ar or benzyl; R2 is H, alkyl of 1 - 6 carbon atoms, cyclohexyl, Ar, aralkyl of 7 - 13 carbon atoms or 2-pyrimidyl; R3 is alkyl of 2 - 6 carbon atoms, cyclohexyl, Ar, aralkyl of 7 - 13 carbon atoms or 2-pyrimidyl; R4 is alkyl of 2 - 6 carbon atoms, cyclohexyl, Ar or benzyl; Ar is phenyl or phenyl monosubstituted or polysubstituted by alkyl of 1 - 4 carbon atoms, methoxy, Cl, or naphthyl and X is Cl, Br or I, are antidotes for phosphorus-containing pesticides and chemical warfare agents.n[US4128651A] |