methyl (S,E)-3-(3-chloro-4,6-dimethoxy-2-(pent-3-en-2-yloxy)phenyl)-3-oxopropanoate

(R)-4-((R)-7-chloro-4,6-dimethoxy-2-(methoxycarbonyl)-3-oxo-2,3-dihydrobenzofuran-2-yl)-2-methylpent-2-enoic acid

methyl (R)-2-((R)-5-(tert-butoxy)-4-methyl-5-oxopent-3-en-2-yl)-7-chloro-4,6-dimethoxy-3-oxo-2,3-dihydrobenzofuran-2-carboxylate

methyl (R)-7-chloro-4,6-dimethoxy-3-oxo-2-((S)-1-oxopropan-2-yl)-2,3-dihydrobenzofuran-2-carboxylate

灰黄霉素