MODULATORS OF ATP-BINDING CASSETTE TRANSPORTERS

1 - 28 . (canceled)

29 . A method of treating a condition, disease, or disorder in a patient implicated by ABC transporter activity, comprising the step of administering to said patient a compound selected from:

or a pharmaceutically acceptable salt thereof;

wherein the condition, disease, or disorder is selected from cystic fibrosis, hereditary emphysema, hereditary hemochromatosis, coagulation-fibrinolysis deficiencies, such as protein C deficiency, Type 1 hereditary angioedema, lipid processing deficiencies, such as familial hypercholesterolemia, Type 1 chylomicronemia, abetalipoproteinemia, lysosomal storage diseases, such as I-cell disease/pseudo-Hurler, mucopolysaccharidoses, Sandhof/Tay-Sachs, Crigler-Najjar type II, polyendocrinopathy/hyperinsulemia, diabetes mellitus, laron dwarfism, myleoperoxidase deficiency, primary hypoparathyroidism, melanoma, glycanosis CDG type 1, hereditary emphysema, congenital hyperthyroidism, osteogenesis imperfecta, hereditary hypofibrinogenemia, ACT deficiency, diabetes insipidus (di), neurophyseal di, neprogenic DI, Charcot-Marie Tooth syndrome, Perlizaeus-Merzbacher disease, neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, progressive supranuclear plasy, Pick's disease, several polyglutamine neurological disorders asuch as Huntington, spinocerebullar ataxia type I, spinal and bulbar muscular atrophy, dentatorubal pallidoluysian, and myotonic dystrophy, as well as spongiform encephalopathies, such as hereditary Creutzfeldt-Jakob disease, Fabry disease, Straussler-Scheinker syndrome, COPD, dry-eye disease, and Sjögren's disease.

30 . The method of claim 29 , wherein the condition, disease, or disorder is cystic fibrosis, hereditary emphysema, or COPD.

31 . The method of claim 30 , wherein the condition, disease, or disorder is cystic fibrosis.

32 . The method of claim 31 , wherein the compound is

33 . The method of claim 31 , wherein the compound is: