Using c1ccc(COC[C@H]2NC[C@@H](OCc3ccccc3)[C@@H]2OCc2ccccc2)cc1, CCCC=O to produce CCCCN1C[C@@H](OCc2ccccc2)[C@H](OCc2ccccc2)[C@H]1COCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.