Using CCCNC1CCc2ccc(OC)cc2C1, CC(C)(C)OC(=O)N1CCCN(CCCC=O)C(=O)C1 to produce CCCN(CCCCN1CCCN(C(=O)OC(C)(C)C)CC1=O)C1CCc2ccc(OC)cc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.