| http://www.w3.org/ns/prov#value | - piperidyl, pyrrolidinyl or morpholino group; R1 represents alkyl group having 1 to 24 carbon atoms, alkoxyalkyl group having 3 to 10 carbon atoms, C5 -C6 cycloalkyl group, phenyl group, naphthyl group, --(CH2)m -phenyl group or --(CH2 CH2 O)n --CH3 group; R2 means hydrogen or one residue of R1 ; is an integer of 1 or 2; n is an integer of 2 to 10; with proviso that at least one of X and Z is not h
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