vannusal B

(1S,2R,5S)-2-[(1R,1′R,2S,2′S,3R,3′R,6′S,9′S,10′R,12′S)-9′-Formyl-2,2′,12′-trihydroxy-3-(2-hydroxy-2-propanyl)spiro[cyclopentane-1,11′-tetracyclo[8.2.2.0~1,9~.0~3,7~]tetradecane]-7′-en-6′-yl]-5-isoprop enylcyclopentyl acetate

vannusal B