Using CC(C)CNc1c(N)cnc2cccnc12, COC(=O)N=C(NC(=O)OC)OC to produce COC(=O)Nc1nc2cnc3cccnc3c2n1CC(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.