Nome Químico: (4R,12As)-7-Hydroxy-4-methyl-6,8-dioxo-3,4,6,8,12,12a-hexahydro-2h-pyrido[1’,2’:4,5]pyrazino[2,1-b][1,3]oxazine-9-carboxylic Acid
Sorrisos: O=C(C1=CN(C2=C(O)C1=O)C[C@]3([H])OCC[C@@H](C)N3C2=O)O
Inchi: InChI=1S/C13H15N3O5/c1-6-2-3-21-8-5-15-4-7(12(14)19)10(17)11(18)9(15)13(20)16(6)8/h4,6,8,18H,2-3,5H2,1H3,(H2,14,19)/t6-,8+/m1/s1