| http://www.w3.org/ns/prov#value | - epresented by the following general formula (I) ##STR3## wherein X is a hydrogen atom, a methyl group or a --COOR1 group; Y is a hydrogen atom, a methyl group or a --(CH2)n COOR2 group; Z is an aryl group, a --COOR3 group or a ##STR4## group; R1, R2 and R3, which may be the same or different, each represents an aliphatic group or an aryl group; and n is an integer of 0 to 3; or (2) each of (A) at
|
