Using O=Cc1cn2c(Br)cnc(N3CCOCC3)c2n1, Cc1ccc2ccccc2n1 to produce Brc1cnc(N2CCOCC2)c2nc(/C=C/c3ccc4ccccc4n3)cn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.