3,16-Diisovaleryl-4-veratroylveracevin 4,9-Epoxycevane-3-beta,4-beta,12,14,16-beta,17,20-heptol 3,16-diisovalerate 4-veratrate Cevane-3-beta,4-beta,12,14,16-beta,17,20-heptol, 4-9-epoxy-, 3,16-diisovalerate 4-veratrate FL4923000