(5S,8E,10E,12R,14Z)-5,12-dihydroxyicosa-8,10,14-trien-6-ynoic acid

(-)-(8E,10E,14Z)-(5S,12R)-methyl 5,12-bis<(tert-butyldimethylsilyl)oxy>eicosa-8,10,14-trien-6-ynoate

戊二酸单甲酯

5-oxo-5-(1,3-dithian-2-yl)pentanoic acid

methyl 5(S)-(benzoyloxy)-5-(1,3-dithian-2-yl)pentanoate