| http://www.w3.org/ns/prov#value | - X, Y, Z the same or different, represent ##STR13## with R3 being hydrogen, a straight or branched chain alkyl having 1 to 18C atoms, a cycloalkyl having 5 to 18C atoms, a substituted or non-substituted aryl having 6 to 18C atoms, an aralkyl having 7 to 18C atoms, or R3 represents a piperidine radical of the formula: ##STR14## wherein each of R4, R5, R7 and R8 the same or different, are a C1 to C6
|
