preferred_name: putrescine + acetyl-CoA = N-acetylputrescine + CoA + H(+)
preferred_name_lc: putrescine + acetyl-coa = n-acetylputrescine + coa + h(+)
label: putrescine + acetyl-CoA = N-acetylputrescine + CoA + H(+)
label_lc: putrescine + acetyl-coa = n-acetylputrescine + coa + h(+)