(1R,2S,3S,4R,7S,8R,9R,10S,11S,13S,14R,17R)-13-Chloro-8,17-dimethyl-12-methylene-16-oxospiro[15,18-dioxatetracyclo[9.6.1.0~1,14~.0~3,8~]octadecane-4,2′-oxirane]-2,7,9,10-tetrayl tetraacetate

(1R,2S,3S,4R,7S,8R,9R,10S,11S,13S,14R,17R)-13-Chloro-8,17-dimethyl-12-methylene-16-oxospiro[15,18-dioxatetracyclo[9.6.1.0~1,14~.0~3,8~]octadecane-4,2′-oxirane]-2,7,9,10-tetrayl tetraacetate

(1R,3aR,4S,6S,7S,8R,8aR,9S,12R,12aS,13S,13aR)-4-chloro-1,8a-dimethyl-5-methylidene-2-oxotetradecahydrospiro[6,13a-epoxybenzo[4,5]cyclodeca[1,2-b]furan-12,2′-oxirane]-7,8,9,13-tetrayl tetraacetate

(−)-Junceellin

PRAELOLIDE