Using CC(C)(C)OC(=O)N1CCc2sc(C=O)cc2C1, C1CCNCC1 to produce CC(C)(C)OC(=O)N1CCc2sc(CN3CCCCC3)cc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.