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

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

Betulinic acid and its derivatives have been extensively studied in the past for their anti-tumor effects, but relativel......

为了进一步开发和利用桦木醇衍生物,以桦木醇为起始物,在其C-3、C-28和C-30上进行修饰,得到了28-O-[2-(吡咯烷-1-基)乙酰基]-桦木......