Chemical and biochemical modifications of parthenin
作者:Biswanath Das、B Venkataiah、A Kashinatham
DOI:10.1016/s0040-4020(99)00292-6
日期:1999.5
Parthenin, a medicinally important natural sesquiterpenoid and a potent allelochemical underwent different regio- and stereoselective modifications to several interesting analogues by chemical and biochemical means. The compound was treated with various common reducing agents including NaBH4, , , and as well as with different oxidizing agents including m-CPBA and dilute HCl under different reaction
Enantioselective synthesis of the titled ambrosanolides is described. Use of the trimethylsilyl group as an anchor contributed to the stereoselective introduction of two methyl groups.
Synthesis and Cytotoxicity of Water-Soluble Ambrosin Prodrug Candidates
作者:Elzbieta Hejchman、Rudiger D. Haugwitz、Mark Cushman
DOI:10.1021/jm00017a025
日期:1995.8
potent, producing cytotoxic activity only slightly less potent than that of ambrosin itself in a variety of human cancer cell cultures. The sodium salt of the bis-sulfonic acid derivative of ambrosin was inactive, while the sodium salt of the bis-sulfinic acid analog had low activity. Biological evaluation of several ambrosin analogs with reduced and/or isomerized alpha,beta-unsaturated ketone and alpha-methylene