Institution: | a Life/Health Division, Korea Institute of Science and Technology, Seongbuk-gu, Seoul 136-791, Republic of Korea b Department of Chemistry, Korea University, Seongbuk-gu, Seoul 136-713, Republic of Korea c Department of Chemistry, College of Natural Sciences, Sangmyung University, Seoul 110-743, Republic of Korea d Department of Medicinal and Pharmaceutical Chemistry, University of Science and Technology, Daejeon, Republic of Korea e Department of Chemistry, Sogang University, Seoul, Republic of Korea f Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea g College of Pharmacy, The Catholic University of Korea, Seongsim Campus, Bucheon, Gyeonggi-do, Republic of Korea |