Using O=C(OCc1ccccc1)c1ncccc1-c1ccc(CCc2ncc(CC3CCCCC3)[nH]2)cc1 to produce O=C(O)c1ncccc1-c1ccc(CCc2ncc(CC3CCCCC3)[nH]2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.