Using CC#N, COC(=O)c1cccc(OCC2CCN(C(=O)OC(C)(C)C)CC2)c1 to produce CC(C)(C)OC(=O)N1CCC(COc2cccc(C(=O)CC#N)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.