Using COc1cc(C2CN(C(=O)OC(C)(C)C)C2)ccc1OCc1ccc(C2CC2)cc1 to produce COc1cc(C2CNC2)ccc1OCc1ccc(C2CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.