Ethyl 3-(((benzyloxy)carbonyl)-(2-ethoxy-2-oxoethyl)amino)propanoate

ethyl 3-[(2-ethoxy-2-oxoethyl)amino]-3-oxopropanoate

1,4-dimethyl-3,6-diphenyl-1,2,4,5-tetrazine

1-methyl-3-phenyl-4,5-dihydro-1,2,4-triazin-6(1H)-one

ethyl (2-((6-methylpyridin-2-yl)carbamoyl)-3-oxobut-1-en-1-yl)glycinate