Biological process

levarterenol biosynthesis, levarterenol biosynthetic process, noradrenaline biosynthesis, noradrenaline biosynthetic process, norepinephrine anabolism, norepinephrine biosynthesis, norepinephrine formation, norepinephrine synthesis

The chemical reactions and pathways resulting in the formation of norepinephrine, a hormone secreted by the adrenal medulla, and a neurotransmitter in the sympathetic peripheral nervous system and in some tracts in the central nervous system. It is also the demethylated biosynthetic precursor of epinephrine.