Using N=C(NC(=O)OCc1ccccc1)N(C(=O)OCc1ccccc1)C1CCC(CCN2CCN(c3ccccc3)CC2)CC1 to produce N=C(N)NC1CCC(CCN2CCN(c3ccccc3)CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.