Using O=C1CN2C=CC=CC2=N1, Cc1cccc2scc(C=O)c12 to produce Cc1cccc2scc(C=C3C(=O)N=C4C=CC=CN34)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.