preferred_name: 2-oxohexanoate + L-kynurenine => L-2-aminohexanoate + 4-(2-aminophenyl)-2,4-dioxobutanoate
preferred_name_lc: 2-oxohexanoate + l-kynurenine => l-2-aminohexanoate + 4-(2-aminophenyl)-2,4-dioxobutanoate
label: 2-oxohexanoate + L-kynurenine => L-2-aminohexanoate + 4-(2-aminophenyl)-2,4-dioxobutanoate
label_lc: 2-oxohexanoate + l-kynurenine => l-2-aminohexanoate + 4-(2-aminophenyl)-2,4-dioxobutanoate