A general, efficient, and environmentally friendly method is provided for producing mostly beta-epoxides of DELTA5-unsaturated steroids using certain ketones as the catalyst along with an oxidizing agent, or by using certain dioxiranes. In another aspect of the invention, a method is provided for pr.....
[Detail]
A protein isolated from the Chinese yam Dioscorea opposita that stimulates estrogen and progesterone release in vitro and in vivo but does not stimulate the proliferation of breast and ovarian cancer cells is disclosed. The protein exhibits anti-osteoporotic activity in vivo. Also provided are the p.....
[Detail]
A Catalyst Compound Of Formula I Or Ii: (Wherein R<1>-R<11>, M, E, T, X, Y, M And N Are Defined Herein). The Compound, When Combined With A Suitable Activator, Is Active For The Polymerization Of Olefins. In An Embodiment Of Combinations Of The R<1>-R<7 >And T Groups, These C.....
[Detail]
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 C2 Symmetric Chiral Elements Is Provide.....
[Detail]
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