(2S,7′R)-5-Hydroxy-7′-(methoxycarbonyl)-3-oxo-3H-spiro[1-benzofuran-2,1′-cyclohept[3]ene]-3′-carboxylic acid

(2S,7′R)-5-Hydroxy-7′-(methoxycarbonyl)-3-oxo-3H-spiro[1-benzofuran-2,1′-cyclohept[3]ene]-3′-carboxylic acid

Spiro[benzofuran-2(3H),1′-cyclohept[5]ene]-2′,6′-dicarboxylic acid, 5-hydroxy-3-oxo-, 2′-methyl ester, (2S,2′R)-

Spiroapplanatumine C