Using CC(=O)OCCN1CCN(CCCOc2cccc3c2CCC(=O)N3)CC1 to produce O=C1CCc2c(cccc2OCCCN2CCN(CCO)CC2)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.