Using CCC1(C=O)COC1, COc1cn(CC(=O)OC(C)(C)C)c(=O)cc1-c1cc(Cl)ccc1C#N to produce CCC1(C=C(C(=O)OC(C)(C)C)n2cc(OC)c(-c3cc(Cl)ccc3C#N)cc2=O)COC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.