Using COc1cccc(C2CCCC(NC[C@H](O)c3cccc(Cl)c3)C2)c1 to produce Oc1cccc(C2CCCC(NC[C@H](O)c3cccc(Cl)c3)C2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.