The photolysis of thymine in phosphate-buffered saline (PBS, pH 8.0) under the irradiation of medium pressure mercury lamp (MPML) produces a novel compound C5H7
A new flavone diglycoside, named as pyrropetioside A 1 was isolated from Pyrrosiapetiolosa. Its structrue was elucidated as 7-O-[6-O-(α-L-arabifuranosyl)-β-D-
A novel pregnane glycoside, biondianoside E, was isolated from the roots of Biondiachinensis. By the spectroscopic and chemical methods, this structure was eluc