Using NCCN1CCOCC1, Cc1cc(NC2CCC(C(=O)O)CC2)c2[nH]c(-c3ccccc3)cc2c1 to produce Cc1cc(NC2CCC(C(=O)NCCN3CCOCC3)CC2)c2[nH]c(-c3ccccc3)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.