上游原料
diethyl succinateethyl 2-(4-aminophenyl)acetatediethyl phthalatediethyl 1,4-dihydroxy-2,3-naphthalenedicarboxylatediethyl 1,4-diethoxy-2,3-naphthalenedicarboxylate1,4-diethoxy-2,3-naphthalenedicarboxylic acid4,9-diethoxynaphtho[2,3-c]furan-1,3-dioneethyl 2-[4-(4,9-diethoxy-1,3-dioxo-1,3-dihydro-2H-benzo[f]isoindol-2-yl)phenyl]acetateethyl 2-[4-(4,9-diethoxy-1-oxo-1,3-dihydro-2H-benzo[f]isoindol-2-yl)phenyl]acetate2-[4-(4,9-diethoxy-1-oxo-1,3-dihydro-2H-benzo[f]isoindol-2-yl)phenyl]acetic acid
