Using O=C(NC1(c2ccc(OC(=O)c3ccccc3)nc2)CCCCC1)c1ccccc1 to produce O=C(NC1(c2ccc(=O)[nH]c2)CCCCC1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.