1	DPC	5-acetylamino-4-amino-6-(phenethyl-propyl-carbamoyl)-5,6-dihydro-4h-pyran-2-carboxylic acid	1.000
2	G28	5-N-acetyl-4-amino-6-diethyl carboxamide-4,5-dihydro-2h-pyran-2-carboxylic acid	0.750