Sintesis Senyawa Analog UK-3A: 3-hidroksi-N-Oktil Pikolinamida, 2-Hidroksi-N-Fenil-Benzamida, 3-Hidroksi-N-Fenilpikolinamida, dan 2-Hidroksi-N-Oktilbenzamida dan Uji Bioaktivitas secara In Vitro terhadap Sel Kanker Murine Leukemia P-388 = Synthesis of Uk-3a Analogs: 3-Hydroxy–N-Octyl Picolinamide, 2-Hydroxy-N-Phenyl-Benzamide, 3-Hydroxy-Nphenylpicolinamide, and 2-Hydroxy-N-Octylbenzamide, and In Vitro Activity Test Against Murine Leukemia P388 Cancer Cell