Using Cn1cc(NC(=O)OC(C)(C)C)c(N2CC(C=O)C(C)(C)C2=O)n1, CNC to produce CN(C)CC1CN(c2nn(C)cc2NC(=O)OC(C)(C)C)C(=O)C1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.