Using O=C(OCc1ccccc1)N1CC[C@H]2CCCN(CCc3ccccc3)C[C@H]21 to produce O=C(OCc1ccccc1)N1CC[C@H]2CCCNC[C@H]21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.