1	DYJ	1-[(2e)-4-carboxy-4-oxobut-2-en-2-yl]-L-proline	1.000
2	DYW	(2~{S})-1-[(2~{S})-2-azanyl-4-oxidanyl-4-oxidanylidene-butanoyl]pyrrolidine-2-carboxylic acid	0.778