preferred_name: 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate + (2S)-2-aminobutanoate => 3-hydroxy-L-kynurenine + 2-oxobutanoate
preferred_name_lc: 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate + (2s)-2-aminobutanoate => 3-hydroxy-l-kynurenine + 2-oxobutanoate
label: 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate + (2S)-2-aminobutanoate => 3-hydroxy-L-kynurenine + 2-oxobutanoate
label_lc: 4-(2-amino-3-hydroxyphenyl)-2,4-dioxobutanoate + (2s)-2-aminobutanoate => 3-hydroxy-l-kynurenine + 2-oxobutanoate