(1aR,1bS,4aS,5R,6aR,7aR,8S,9aS)-9a-(((4-methoxybenzyl)oxy)methyl)-3,5,7,7-tetramethyl-1b-((trimethylsilyl)oxy)-1a,1b,5,6,6a,7,7a,8,9,9a-decahydro-2H-4a,8-methanocyclopenta[3,4]cyclopropa[7,8]cyclodeca[1,2-b]oxirene-2,10-dione

(2aS,5aR,5bS,6aR,8S,8aR,9aR,11R,11aS)-2,4,4,9,9,11-hexamethyl-6a-((phenylsulfonyl)methyl)-5b,6a,8,8a,9,9a,10,11-octahydro-2aH,7H-8,11a-methanocyclopropa[5',6']oxireno[2'',3'':9',10']cyclodeca[1',2':1,5]cyclopenta[1,2-d][1,3]dioxol-12-one

3,4-O-isopropylidene-20-deoxyingenol