Using C1COCCO1, CCOC(=O)c1c(-c2ccccc2)c2cc(Cl)ccc2[nH]c1=O to produce Cc1cc(-c2c(-c3ccccc3)c3cc(C=O)ccc3[nH]c2=O)on1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.