2H-pyran-6-carboxylic acid, 4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-2-ethoxy-3,4-dihydro-, methyl ester, (2R,4R)- InChI=1/C17H17NO6/c1-3-23-14-9-10(8-13(24-14)17(21)22-2)18-15(19)11-6-4-5-7-12(11)16(18)20/h4-8,10,14H,3,9H2,1-2H3/t10-,14+/m0/s methyl (2R,4R)-4-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)-2-ethoxy-3,4-dihydro-2H-pyran-6-carboxylate