N-(5'-ホスホ-D-1'-リブロシルホルムイミノ)-5-アミノ-1-(5''-ホスホ-D-リボシル)-4-イミダゾールカルボキサミド;
N-(5'-Phospho-D-1'-ribulosylformimino)-5-amino-1-(5''-phospho-D-ribosyl)-4-imidazolecarboxamide