CCC(C)C1NC(=O)C(CC(C)C)NC(=O)C(CC(C)C)NC(=O)C(C(C)C)NC1=O	3-butan-2-yl-6,9-bis(2-methylpropyl)-12-propan-2-yl-1,4,7,10-tetrazacyclododecane-2,5,8,11-tetrone