摘要:
The invention provides a composition containing extracts from salvia miltiorrhiza bunge, gynostemma pentaphyllum mak, Chinese magnoliavine, cordyceps extract piece, pollen pini, and semen persicae and methods of and using the same.
摘要:
Methods for effecting epoxidation of olefinic compounds using cyclic ketone catalysts is provided. In particular, catalytic asymmetric epoxidation of unfunctionalized olefins, e.g., trans-olefins and trisubstituted olefins using novel cyclic ketones possessing C.sub.2 symmetric chiral elements is provided.