| http://www.w3.org/ns/prov#value | - Representatives of these backbone to amine structures include the structure wherein the amine is present in the backbone ##STR8## and the following structures wherein the amine is pendant from the backbone. ##STR9## wherein Chrom is ##STR10## R2 is as previously defined, R7 and R8 independently are hydrogen or lower alkyls totaling at most 4 carbons and R9 is a 2 to 4 carbon alkyl.
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