2.
Name: N-butyl-4-ethyl-N,7-dimethyl-5-oxo-9-thia-2,4-diazabicyclo[4.3.0]nona-2,7,10-triene-8-carboxamide
CAS: 6770-44-1



3.
Name: ethyl 7-methyl-5-oxo-4-[(4-oxo-1-cyclohexa-2,5-dienylidene)methylamino]-9-thia-2,4-diazabicyclo[4.3.0]nona-2,7,10-triene-8-carboxylate
CAS: 5636-60-2


