[6-(4-Methoxymethoxy-phenyl)-1-(2-methylsulfanyl-benzyl)-2,4-dioxo-5-(pentanoylamino-methyl)-1,4-dihydro-2H-thieno[2,3-d]pyrimidin-3-yl]-acetic acid ethyl ester

[5-(1,3-Dioxo-1,3-dihydro-isoindol-2-ylmethyl)-6-(4-methoxymethoxy-phenyl)-1-(2-methylsulfanyl-benzyl)-2,4-dioxo-1,4-dihydro-2H-thieno[2,3-d]pyrimidin-3-yl]-acetic acid ethyl ester