Using C[C@@H](Cn1ccc2ccc3ccccc3c21)NC(=O)OC(C)(C)C to produce C[C@@H](CN1CCc2ccc3ccccc3c21)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.