chapter  L
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Theresultingresinbatchesl-3wereencodedwithuniquecombinationsoftwo moleculartags,mixedtogiveresinbatchA,andthendividedequallyintoseven portions.

Thesewerethenreactedwithsevencyclicandacyclicketones.Ineachcase,a formalaldolcondensationoccurred,andthiswasfollowedbyanintramolecularI,4conjugateadditiontogivethedihydrobenzopyrancorestructure(Figure17).Eachofthe resultingresinbatches4-t0wassubsequentlyencodedwithadistinctsetofthree moleculartags.