91284-30-9 Antibiotic SF 2140 Methyl (3-cyanomethyl-4-methoxyindol-1-yl-4-deoxy-alpha-D-lyxo-hexopyranosid)uronate Methyl 2-(3-cyanomethyl-4-methoxyindol-1-yl)-3,4-dihydroxytetrahydropyran-6-carboxylate SF 2140 alpha-D-lyxo-Hexopyranuronic acid, 1-(3-(cyanomethyl)-4-methoxy-1H-indol-1-yl)-1,4-dideoxy-, methyl ester beta-D-Ribo-hexopyranuronic acid, 1-(3-(cyanomethyl)-4-methoxy-1H-indol-1-yl)-1,4-dideoxy-, (SP-4-1)-