3,5-isoxazoledicarboxylic acid, 4,5-dihydro-5-methyl-, diethyl ester InChI=1/C10H15NO5/c1-4-14-8(12)7-6-10(3,16-11-7)9(13)15-5-2/h4-6H2,1-3H diethyl 5-methyl-4,5-dihydroisoxazole-3,5-dicarboxylate