preferred_name: (2S,3R)-diaminobutanoate + fumarate => N(3)-1,2-dicarboxyethyl-diaminobutanoate
preferred_name_lc: (2s,3r)-diaminobutanoate + fumarate => n(3)-1,2-dicarboxyethyl-diaminobutanoate
label: (2S,3R)-diaminobutanoate + fumarate => N(3)-1,2-dicarboxyethyl-diaminobutanoate
label_lc: (2s,3r)-diaminobutanoate + fumarate => n(3)-1,2-dicarboxyethyl-diaminobutanoate