Using CCOC(=O)COc1ccc(C23CC4CC(CC(C4)C2)C3)cc1C to produce Cc1cc(C23CC4CC(CC(C4)C2)C3)ccc1OCC(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.