1. Drug
Discovery Division, Korea Research Institute of Chemical Technology, Yuseong,
Daejeon 34114, Republic of Korea
2. College
of Pharmacy, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon, Gangwon-do 24341, Republic of Korea
3. Department
of Chemistry, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea