Methyl 5-[(1Z)-1-(dimethylamino)-4-ethoxy-3,4-dioxobut-1-en-2-yl]-3-phenyl-1,2-oxazole-4-carboxylate 1g

Methyl 5-[(1Z)-1-(dimethylamino)-4-ethoxy-3,4-dioxobut-1-en-2-yl]-3-phenyl-1,2-oxazole-4-carboxylate 1g