Provided are compounds, processes and synthetic intermediates useful for
the preparation of compounds of the formula I and IX
##STR1##
wherein R.sup.1 is selected from the group consisting of hydrogen,
trihalomethyl, C.sub.1 -C.sub.6 alkyl and substituted or unsubstituted
phenyl; Y is a group of the formula
##STR2##
wherein R.sup.2 is selected from the group consisting of C.sub.1 -C.sub.6
alkyl, C.sub.1 -C.sub.6 alkanoylamino and amino; and R.sup.5 is selected
from the group consisting of hydrogen, amino, halogen, hydroxyl, nitro,
C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, carboxy, C.sub.1 -C.sub.6
trihaloalkyl, cyano, phosphonato, and hydroxyalkyl; and Z is selected from
the group consisting of substituted and unsubstituted aryl. Also provided
are certain N-acylated analogs of compounds of the formula I and IX, and
processes for their preparation.
