1. Cancer Biology Program, University of Hawaii Cancer Center, University of Hawaii, Manoa, Honolulu, Hawaii 96813, United States
2. Department of Chemistry, University of Hawaii, Manoa, Honolulu, Hawaii 96825, United States
3. Susan Lehman Cullman Laboratory for Cancer Research, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, New Jersey 08854, United States