Using CC(C)(C)OC(=O)N=C(NC(=O)OC(C)(C)C)Nc1ccc2c(c1)Cc1cc(NC(=NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C)ccc1-2 to produce N=C(N)Nc1ccc2c(c1)Cc1cc(NC(=N)N)ccc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.