Using O=C(O)c1cccc(Cc2n[nH]c(=O)c3ccccc23)n1, CC(C)(C)OC(=O)N1CCNCC1 to produce O=C(c1cccc(Cc2n[nH]c(=O)c3ccccc23)n1)N1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.