xestobergsterol A
National Institutes of Health
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[formula: see text] A novel pentacyclic polyhydroxylated sterol, xestobergsterol A (1a), has been synthesized in 24 steps and in…
In 1973, Breslow and co-workers developed a method for “remote functionalization” of steroids,2 namely, functionalization of C9…
A new pentacyclic steroid, xestobergsterol C [1], possessing a cis C/D ring junction, has been isolated together with two known…