Using CC(C)(O)CNc1c(N)cnc2ccccc12, COC(=O)N=C(NC(=O)OC)OC to produce COC(=O)Nc1nc2cnc3ccccc3c2n1CC(C)(C)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.