Using CN(Cc1ccccc1)c1nc2c(c(=O)[nH]1)CCN(C(=O)OC(C)(C)C)CC2, C[O+](C)C to produce COc1nc(N(C)Cc2ccccc2)nc2c1CCN(C(=O)OC(C)(C)C)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.