192049-49-3

IKUFRGFORUKHMI-DENIHFKCSA-N 4-Nitrobenzyl 2-((1R,5R)-3-benzyl-7-oxo-4-thia-2,6-diazabicyclo-[3.2.0]hept-2-en-6-yl)-3-methylbu 5-Methyl-2-nitrophenyl 2-{3-benzyl-7-oxo-4-thia-2,6-diazabicyclo[3.2.0]hept-2-en-1-yl}-3-Methylbut-2-enoate 72. 4-nitrobenzyl 2-((1R,5R)-3-benzyl-7-oxo-4-thia-2,6-diaza bicyclo[3.2.0]hept-2-en-6-yl)-3-methyl -but-2-enoate 4-Thia-2,6-diazabicyclo[3.2.0]hept-2-ene-6-acetic acid, a-(1-methylethylidene)-7-oxo-3-(phenylmethyl)-, (4-nitrophenyl)methyl ester, (1R,5R)- 4-Thia-2,6-diazabicyclo[3.2.0]hept-2-ene-6-acetic acid, α-(1-methylethylidene)-7-oxo-3-(phenylmethyl)-, (4-nitrophenyl)methyl ester, (1R,5R)-