153445-93-3 Methyl (1R-(1alpha,4beta,5beta,6beta,6abeta,9alpha,9abeta))-octahydro-1,5,6a-trihydroxy-9-methyl-2,2'-dioxospiro(6H-4,9a-methanocyclopent(d)oxocin-6,3'-oxetane)-5-carboxylate Methyl octahydro-1,5,6a-trihydroxy-9-methyl-2,2'-dioxospiro(6H-4,9a-methanocyclopent(d)oxocin-6,3'-oxetane)-5-carboxylate (1R-(1alpha,4beta,5beta,6beta,6abeta,9alpha,9abeta))- Spiro(6H,4,9a-methanocyclopent(d)oxocin-6,3'-oxetane)-5-carboxylic acid, octahydro-1,5,6a-trihydroxy-9-methyl-2,2'-dioxo-, methyl ester, (1R-(1alpha,4beta,5beta,6beta,6abeta,9alpha,9abeta))- Spiro(6H-4,9a-methanocyclopent(d)-oxocin-6,3'-oxetane)-5-carboxylic acid, octahydro-2,2'-dioxo-9-methyl-1,5,6a-trihydroxy-, methyl ester, (1R-(1-alpha,4-beta,5-beta,6-beta,6a-beta,9-alpha,9a-beta))- Veranisatin B