Using CCOC(=O)c1n[nH]c(NCCCCOc2cccc(CN3CCCCC3)c2)n1 to produce OCc1n[nH]c(NCCCCOc2cccc(CN3CCCCC3)c2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.