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Fremgangsmaade til fremstilling af 4'-demethyl-epipodophyllotoxin-beta-d-ethylidenglycocid og acylderivater deraf til anvendelse som udgangsmaterialer i fremgangsmaaden
Avlaegsnande av sulfongrupper innehaollande extraherbara aemnen ur vattenloesningar av socker med anvaendning av akrylgrupper innehaollande anjonbytarhartser