β-(2-imidazolinyl)-ethyl methyl diethoxy silane quarternary halides and its condensed polymers with bisphenol A were synthesized and characterized. The polycat
(±)Lespedezaflavanone E, 6, 8, 3’-tri (γ,γ-dimethylallyl)-5, 7, 2’, 4’-tetrahydroxy-flavanone, has been synthesized by the condensation of 3, 5-di (γ
Two minor steroidal saponins were isolated from the roots of Smilaxmenispermoidea.One of them is new and its structure was established as(25S)spirost-5-en-3β,1