preferred_name: glycocholate + L-histidine <=> L-histidocholate + glycine
preferred_name_lc: glycocholate + l-histidine <=> l-histidocholate + glycine
label: glycocholate + L-histidine <=> L-histidocholate + glycine
label_lc: glycocholate + l-histidine <=> l-histidocholate + glycine