Using CCOC(=O)CC1Cc2ccc(OCCc3cccc(N)n3)cc2Cc2ccccc21 to produce Nc1cccc(CCOc2ccc3c(c2)Cc2ccccc2C(CC(=O)O)C3)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.