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Qian Rong LI* Ting Hu ZHANG Robert S.WARD Structure Research Laboratory University of Science Technology of China Hefei Chemistry Department University of Wales Swansea Singleton Park Swansea SA PP UK 《中国化学快报》2001,(12)
Introduction 2, 3-Dichloro-5, 6-dicyanobenzoquinone (DDQ) can react with lignans of the mono- arylidene-butyrolactone1, aryltetralin2, dibenzylbutane3 and aryltetralin-butyrolactone4,5 series. We have studied the reactions of this reagent with podophyllotoxin 1, which is a well-known natural product on account of its long history of use in folk medicine and the biological activity of its many derivatives6. In particular, derivatives of 4-demethyl epipodophyllotoxin are used in cancer chemo… 相似文献
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