5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 7-(((((4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl)amino)(4-hydroxyphenyl)acetyl)amino)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)-8-oxo-, (6R-(6-alpha,7-beta(R*)))- 62939-46-2 BRN 1070802