218288-72-3 | 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-bromo-8-oxo-7-[(phenylacetyl)amino]-, diphenylmethyl ester, (6R,7R)- | C28H23BrN2O4S |
2800-34-2 | 2-[4-[(2-amino-4-oxo-5,6,7,8-tetrahydro-1H-pteridin-6-yl)methyl-formyl-amino]benzoyl]aminopentanedioic acid | C20H23N7O7 |