ER-807903

ER-807901

(3Z,9E)-(1R,7S,15S,17R)-7-[(E)-(S)-1-(tert-Butyl-dimethyl-silanyloxy)-3-((S)-4-methyl-3,6-dihydro-2H-pyran-2-yl)-allyl]-15-methyl-13-methylene-6,21-dioxa-bicyclo[15.3.1]henicosa-3,9,19-triene-5,11-dione

16,17-deoxy-laulimalide

C.15-epi des-epoxy-laulimalide