Using CNC(=O)c1cnc(Oc2ccc3c(c2)CCN(C(=O)OC(C)(C)C)CC3)cn1 to produce CNC(=O)c1cnc(Oc2ccc3c(c2)CCNCC3)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.