Using O=C1OC(=O)[C@@H]2CC=CC[C@H]12, NCCCCN1CCN(c2ncccn2)CC1 to produce O=C1C2CC=CCC2C(=O)N1CCCCN1CCN(c2ncccn2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.