Using O=C1CCCc2cc(OCCc3c[nH]cn3)ccc21, NC(=O)c1ccc(C=O)cc1 to produce NC(=O)c1ccc(C=C2CCc3cc(OCCc4c[nH]cn4)ccc3C2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.