NC1=NC(=O)/C(=C2\c3cc[nH]c3C(=O)NCC2O)N1	(6Z)-6-(2-amino-4-oxo-1H-imidazol-5-ylidene)-5-hydroxy-3,10-diazabicyclo[5.3.0]deca-1(7),8-dien-2-one