Ключевые слова: 3d, amino acid, antiparkinsonian agents, atom, atomic, bean, biochemical, biochemistry, biology, bond, built structure, c9h11no4, carbon, chain, chemical, chemical compound, chemical formula, chemistry, compound, disease, dopa, dopamine, dopamine precursors, drug, formula, health, hydrogen, ldopa, levodopa, ltyrosine, medication, medicine, model, molecular, molecular structure, molecule, nitrogen, oxygen, precursor neurotransmitters dopamine, research, science, scientific, skeletal, structural, structure,