Using COC(=O)/C=C/C(CSc1ccccc1)NC(=O)OC(C)(C)C to produce COC(=O)CCC(CSc1ccccc1)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.