| 英文同义词: | 3-methyl-1,1-cyclobutanedicarboxylic acid 1,1-diethyl ester;3-Methyl-cyclobutane-1,1-dicarboxylic acid diethyl ester;1,1-diethyl 3-methylcyclobutane-1,1-dicarboxylate;Diethyl 3-methylcyclobutane-1,1-dicarboxylate;1,1-Cyclobutanedicarboxylic acid, 3-methyl-, 1,1-diethyl ester |