1 LBF Leptomycin B 1.000 2 L95 [(3~{z},5~{S},6~{S},7~{S},8~{R},9~{S},11~{z},13~{S},14~{S},15~{S},16~{z},18~{S})-5,7,9,11,13,15-hexamethyl-19-[(2~{S},3~{R})-3-methyl-6-oxidanylidene-oxan-2-yl]-8,14,18-tris(oxidanyl)nonadeca-3,11,16-trien-6-yl] carbamate 0.717