Using COc1c(C)cc2c(c1C)Cc1c-2[nH]c2ccc(C(C)C)cc12 to produce Cc1cc2c(c(C)c1O)Cc1c-2[nH]c2ccc(C(C)C)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.