Using O=C(O)c1cnoc1Cc1ccccc1, c1cncc(C2CCNC2)c1 to produce O=C(c1cnoc1Cc1ccccc1)N1CCC(c2cccnc2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.