Acta Chimica Sinica ›› 1983, Vol. 41 ›› Issue (6): 574-576. Previous Articles    

Original Articles

青蒿素及其一类物结构和合成的研究 X.从青蒿酸立体控制合成青蒿素和脱氧青蒿素

许杏祥;朱杰;黄大中;周维善   

  1. 中国科学院上海有机化学研究所
  • 发布日期:1983-06-15

Studies on structure and synTheses of arteannuin and related compound x. The stereocontrolled syntheses of arteannuin and deoxyarteannuin from arteannuic acid

XU XINGXIANG;ZHU JIE;HUANG DA-ZHONG;ZHOU WEISHAN   

  • Published:1983-06-15

Arteannuin (1), a new sesquiterpene lactone containing a peroxide group, is the antimalarial active principle isolated from Artemisia annua L. Deoxyarteannuin (2) occurs in the same plant and was isolated as a metabolite from the urine of patients treated with arteannuin. We now report a stereocontrolled synthesis of these two naturally occurring sesquiterpene lactones starting from arteannuic acid (5) by the reaction sequence as shown in Scheme 2 (see Chinese Text). Irradiation of the methanolic solution of the key intermediate 3 in the resence of oxygen and a sensitizer (Rose Bangal) with 200 W high pressure mercury lamp followed by acid treatment gave 1 in 28% yield (2 steps), m.p. 151-153`c,

Key words: LACTONES, ANTIMALARIALS, SESQUITERPENE, ARTEANNUIN

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