Using CC(C)(C)OC(=O)NCC(=O)O, COCCOc1ccc2c(c1)ncn2-c1ccc2cccc(N3CCC(N)CC3)c2n1 to produce COCCOc1ccc2c(c1)ncn2-c1ccc2cccc(N3CCC(NC(=O)CN)CC3)c2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.