preferred_name: glycocholate + L-arginine = L-arginocholate + glycine
preferred_name_lc: glycocholate + l-arginine = l-arginocholate + glycine
label: glycocholate + L-arginine = L-arginocholate + glycine
label_lc: glycocholate + l-arginine = l-arginocholate + glycine