Using COc1ccc(OC(CCCN2CC3CN(C(=O)OC(C)(C)C)CC3C2)c2ccc(C#N)cc2)cc1OC to produce COc1ccc(OC(CCCN2CC3CNCC3C2)c2ccc(C#N)cc2)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.