ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .2 99740 3 4)
The changes of the specific rotation and sign of optically active BINOL have been studied in polar/non polar solvents and at the different pH values of solvent. It is considered that these changes are determined by t...
Two new ent-kaurene diterpenoids, angustifolin B and natural hydrogen-bonded 1:1 complex, angustifolin C, as well as four known diterpenoids, angustifolin, isodonal, sodoponin, tri-chorabdal B, were isolated from the ...