Using O=C(O)c1ccc(-c2ccc3c(-c4c(-c5ccccn5)nn5c4CCC5)ccnc3c2)cc1, CC(C)(C)OC(=O)NCCN to produce CC(C)(C)OC(=O)NCCNC(=O)c1ccc(-c2ccc3c(-c4c(-c5ccccn5)nn5c4CCC5)ccnc3c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.