Using COc1cccc2c(-c3csc(COC(=O)C(C)(C)C)n3)cn(CC3CCCCC3)c12 to produce COc1cccc2c(-c3csc(CO)n3)cn(CC3CCCCC3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.