(1R,7S,8S,9S)-7-acetoxy-9-ethynyl-9-methyl-11-oxo-10-oxa-tricyclo[6.3.2.01,7]tridec-3-ene-4-carboxylic acid methyl ester

3-iodo-2-methylprop-2-enoic acid

methyl (3R,4R,4aS,9aR)-4a-hydroxy-3-((1E,3E)-5-hydroxy-4-methylpenta-1,3-dien-1-yl)-3-methyl-1-oxo-3,4,4a,5,6,9-hexahydro-1H-4,9a-ethanocyclohepta[c]pyran-7-carboxylate

(1R,4S,7S,8R,9R)-7-Hydroxy-9-((1E,3E)-5-hydroxy-4-methyl-penta-1,3-dienyl)-9-methyl-11-oxo-10-oxa-tricyclo[6.3.2.01,7]tridecane-4-carboxylic acid methyl ester

methyl (3S,4R,4aS,7S,9aR)-3-formyl-4a-hydroxy-3-methyl-1-oxooctahydro-1H-4,9a-ethanocyclohepta[c]pyran-7-carboxylate