S. Cockeram Attorney-James E. Bryan [57] ABSTRACT (unrea rzo x-m:|m.,o]... win NH s02 H Formula III wherein R is a saturated aliphatic alkyl or alkoxy group each with one to six carbon atoms which may be substituted by one to three halogen atoms, or a cycloaliphatic alkyl group, or an aryl or aryloxy group each with six or 10 carbon atoms which may be substituted up to 3 times by halogen atoms and