prov:value
| - ##STR2## wherein each R is independently selected from the group consisting of hydrogen, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert butyl, C1-4 alkoxy, halogens, cyano, nitro, and phenyl, and R3 and R4 together form an epoxy groupand Q is ##STR3## and n is 0 and p is 0 and r is 1 or n is 1 and p is 1 and r is 1 or Q is a bond between O and Q and n is 0 and p is 0 and r is 1 or n is
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