Using NCCCOc1cccc(CN2CCCCC2)c1, CSC1=NC(=O)CN1 to produce O=C1CNC(NCCCOc2cccc(CN3CCCCC3)c2)=N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.