[1] Univ Padjadjaran, Fac Pharm, Dept Pharmaceut Anal & Med Chem, Jl Raya Bandung Sumedang Km 21, Sumedang 45363, Indonesia
[2] Univ Padjadjaran, Fac Math & Nat Sci, Dept Chem, Jatinangor 45363, Indonesia
[3] Univ Sains Malaysia, Sch Pharmaceut Sci, George Town 11800, Malaysia