Using O=C(O)Cn1c(-c2ccc(Cl)cc2)nc2cccnc21, CC(C)O to produce CC(C)OC(=O)Cn1c(-c2ccc(Cl)cc2)nc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.