目的：研究三棱Sparganium stoloniferum Buch．-Ham．的化学成分。方法：采用硅胶柱层析，Sephadex LH-20，ODSC-18，重结晶等方法，根据理化性质......

ＳｔｕｄｉｅｓｏｎｔｈｅＧｌｙｃｏｓｉｄｅｓｉｎｔｈｅＬｅａｖｅｓｏｆＯｐｌｏｐａｎａｘｅｌａｔｕｓＮＡＫＡＩ（Ⅰ）ＷＡＮＧＧｕａｎｇ－ｓｈｕ，ＺＨＡＯＣｈｕｎ－ｆａｎｇａｎｄＸＵＪｉｎｇ－ｄａ（ＢｅｔｈｕｎｅＵｎｉｖｅｒｓｉｔｙｏｆＭｅｄｉｃａｌＳ.........

Macroscopic fungi on Caucasian alder wood(Alnus subcordata)were identified and tested as a source of betulin and betulin......

Betulinic acid is a known natural product which has gained a lot of attention in the recent years since it exhibits a va......