(1'Z,4'Z,7'Z,10'Z)-(1S,2S,4R,5S,6R)-2-methoxy-6-(methoxymethyl)oxy-4-trideca-1',4',7',`0'-tetraenyl-3-oxabicyclo[3.3.0]octane

5-O-methoxymethoxybacillariolide I

(1S,1'S,2S,3R)-2-{1-hydroxy-2'-[4''-(methoxyphenyl)methoxy]oxy}methyl-3-(methoxymethoxy)oxy-1-phenylsulfonyl-1-vinylcyclopentane

(1'Z)-(1S,4R,5S,6R)-2-methoxy-6-(methoxymethyl)oxy-4-[(5'-methoxycarbonyl)pent-1'-enyl]-3-oxabicyclo[3.3.0]octane

(1S,2S,4R,5S,6R)-4-formyl-2-methoxy-6-(methoxymethyl)oxy-3-oxabicyclo[3.3.0]octane