PROTOVERATRINE A (RG)(CALL)

4-beta,6-alpha,7-alpha,14,15-alpha-16-beta,20-octol,4,9-epoxy-cevane-3-bet

6,7-diacetate3-(threo-(+)-2,3-dihydroxy-2-methylbutyrate)15-((-)-2-methylbut

4α,9-Epoxycevane-3β,4β,6α,7α,14,15α,16β,20-octol 6,7-diacetate 3-[(2R,3R)-2,3-dihydroxy-2-methylbutanoate]15-[(R)-2-methylbutanoate]