. "The chemical reactions and pathways resulting in the formation of a pyrimidine-containing compound, i.e. any compound that contains pyrimidine or a formal derivative thereof." . . . . . "pyrimidine-containing compound biosynthetic process" . "pyrimidine and derivative biosynthetic process" . "pyrimidine-containing compound anabolism" . "pyrimidine-containing compound biosynthesis" . "pyrimidine-containing compound formation" . "pyrimidine-containing compound synthesis" . . . . . . . . . . . . . .