Abstract: There are disclosed compounds of the formula, ##STR1## where X and Y are each independently hydrogen, loweralkyl, halogen or trifluoromethyl; Z is hydrogen or 2- or 3-Cl, Br, I, CHO or CH.dbd.CR.sub.1 R.sub.2 where R.sub.1 and R.sub.2 are each independently hydrogen or loweralkyl; R is hydrogen, ##STR2## where n is 1, 2 or 3, R.sub.3 is loweralkyl, and R.sub.4 is hydrogen or loweralkyl, or alternatively the group --NR.sub.3 R.sub.4 as a whole is ##STR3## where R.sub.6 is loweralkyl, ##STR4## and R.sub.7 is loweralkyl or ##STR5## R.sub.8 being hydrogen, loweralkyl, halogen, trifluoromethyl or methoxy; and R.sub.5 is hydrogen, loweralkyl or arylloweralkyl.