| http://www.w3.org/ns/prov#value | - d(ii) R.sup.8 and R.sup.9 are, independently, R.sup.8a ; where R.sup.8a is hydrogen, alkyl, alkenyl, carbocyclic ring, or heterocyclic ring substituents; or R.sup.8 and R.sup.9 together comprise a heterocyclic ring including the nitrogen to whichthey are bonded;(2) A.sup.2 is C(R.sup.2); where R.sup.2 is hydrogen or (preferably) halogen;(3) A.sup.3 is N or (preferably) C(R.sup.5); where R.sup.5 is
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