Using COc1ccc2c(c1)C(=O)N(c1ccc(C(=O)Nc3cnccc3N3CCN(C(=O)OC(C)(C)C)CC3)o1)C2 to produce COc1ccc2c(c1)C(=O)N(c1ccc(C(=O)Nc3cnccc3N3CCNCC3)o1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.