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Dihydroartemisinin is a kind of half times terpene lactone compounds,which has good antimalarial effect.Modern pharmacology study confirmed that the dihydroartemisinin drugs also have antitumor pharmacological effects.This article mainly take oxalyl chloride and aspirin as raw materials to obtain aspirin chloride(AC)and get acetylsalicylic acid dihydroartemisinin ester(ASDE)at low temperature by the reaction of dihydroartemisinin with AC,reaction route and H1 NMR of ASDE are shown in figure 1 and 2,According to the principle of codrug,we make dihydroartemisinin with aspirin into ester by acyl chloride method to synthesize new artemisinin-based codrug that may have antitumor activity.The series similar dihydroartemisinin mutual prodrugs is being synthesized.