Ethyl 5-((1E)-1-{(E)-2-[1-(4-ethoxycarbonyl-3-methyl-1,2-oxazol-5-yl) ethylidene]hydrazin-1-ylidene}ethyl)-3-methyl-1,2-oxazole-4-carboxylate
Ethyl 5-((1E)-1-{(E)-2-[1-(4-ethoxycarbonyl-3-methyl-1,2-oxazol-5-yl) ethylidene]hydrazin-1-ylidene}ethyl)-3-methyl-1,2-oxazole-4-carboxylate