benzhydryl 3-methyl-5,5,8-trioxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

benzhydryl 3-methyl-5,5,8-trioxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate · CAS 370588-49-1