Using O=C1OC(=O)c2ccccc21, NCCc1cc[nH]c(=O)c1 to produce O=C1c2ccccc2C(=O)N1CCc1cc[nH]c(=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.