Triterpene glycosides from Astragalus and their genins. LXXVIII. Chemical transformation of cycloartanes. VI. Partial synthesis of cycloadsurgenina
作者:I. M. Isaev、D. A. Iskenderov、M. I. Isaev
DOI:10.1007/s10600-009-9188-2
日期:2008.11
Cycloadsurgenin, 20R,24 S-epoxycycloartan-6α,25-diol-3,16-dione, was partially synthesized in four steps from cyclosieversigenin. Side products with the structures 17E,24S-cycloart-17-en-6α,24,25-triol-3,16-dione and 17Z,24 S-cycloart-17-en-6α,24,25-triol-3,16-dione were obtained in addition to the desired product.
Cycloadsurgenin,20R,24 S-epoxycycloartan-6α,25-diol-3,16-dione,是由 cyclosieversigenin 分四步部分合成的。副产物结构为 17E,24S-cycloart-17-en-6α,24,25-triol-3,16-dione 和 17Z,24 S-cycloart-17-en-6α,24,25-triol-3,除了所需产物外还获得了16-二酮。