methyl 11-(2-methylallyl)-9,10-dihydro-9,10-ethanoanthracene-11-carboxylate

4-(Diethoxyphosphoryl)-5-hydroxyheptan-2-one

3,4-dimethyl-9',10'-dihydrospiro[cyclopentane-1,11'-[9,10]ethanoanthracen]-3-en-2-one

1,1-dimethylethyl 4-[(diethoxyphosphoryl)oxy]-2-(1-oxopropyl)-2-[(trimethylsilyl)methyl]-4-pentenoate

(1S,9'R,10'R)-3-methyl-9',10'-dihydrospiro[cyclopentane-1,12'-[9,10]ethanoanthracen]-2-en-5-one