12,13-bismethylene-12,13-secoepothilone

12,13-dihydro-12,13-dihydroxydibenzo(a,e)fluoranthene

[(14E)-7-acetyloxy-9-[5-(5-acetyloxy-4-hydroxy-4,6-dimethyloxan-2-yl)oxy-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-8-methoxy-3,12-dimethyl-5-oxo-10-(2-oxoethyl)-4,17-dioxabicyclo[14.1.0]heptadec-14-en-13-yl] propanoate

12,13-de-epoxy-12,13-dehydro-20-dihydrorosaramicin

12,13-de-epoxy-12,13-didehydrorosamicin 20-dimethyl acetal

12,13-dihydroxyoctadecanoic acid

12,13-dimethylhexadecanoic acid