828919-20-6

5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,3-[(1Z)-2-(2,4-dinitrophenyl)ethenyl]-8-oxo-7-[(2-thienylacetyl)amino]-,(4-methoxyphenyl)methyl ester, (6R,7R)-