Using O=C(CN1CCNCC1)N1CCOCC1, O=C1CC[C@@H](C(=O)O)N1 to produce O=C1CCC(C(=O)N2CCN(CC(=O)N3CCOCC3)CC2)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.