Using COC(OC)N(C)C, COC(=O)c1cc2cc(OC)c(OC)cc2nc1N to produce COC(=O)c1cc2cc(OC)c(OC)cc2nc1/N=C/N(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.