nucleobase-containing compound metabolic process heterocycle biosynthetic process aromatic compound biosynthetic process nucleobase-containing compound biosynthetic process The chemical reactions and pathways resulting in the formation of nucleobases, nucleosides, nucleotides and nucleic acids. nucleobase, nucleoside, nucleotide and nucleic acid anabolism nucleobase, nucleoside, nucleotide and nucleic acid biosynthesis nucleobase, nucleoside, nucleotide and nucleic acid formation cellular nitrogen compound biosynthetic process organic cyclic compound biosynthetic process