Using CC(C)(C)OC(=O)NC1CCNCC1, O=Cc1ccc2c(c1)NC(=O)CC2 to produce CC(C)(C)OC(=O)NC1CCN(Cc2ccc3c(c2)NC(=O)CC3)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.