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

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

1-(p-methoxyphenyl)-2-(o-methylthiophenyl)ethane

ethyl 2,4(1H,3H)-dioxo-6-(4-methoxy-methoxyphenyl)-1-(2-methylthiobenzyl)-5-(benzenesulfon-amidomethyl)thieno[2,3-d]pyrimidine-3-acetate

ethyl 6-(4-methoxymethoxyphenyl)-5-methyl-1-(2-methylthiobenzyl)-2,4-dioxo-1,2,3,4-tetrahydro<2,3-d>pyrimidine-3-acetate