114082-56-3

(2S,5R,6R)-6-{[(4-hydroxyphenyl){[(5-oxo-2-piperazin-1-yl-5,8-dihydropyrido[2,3-d]pyrimidin-6-yl)carbonyl]amino}acetyl]amino}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid