Using O=C(O)c1cccc2[nH]ccc12, CC(C)(C)OC(=O)CCOCCOCCOCCN to produce CC(C)(C)OC(=O)CCOCCOCCOCCNC(=O)c1cccc2[nH]ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.