Aiming at generating a series of monoterpene indole alkaloids with enhanced multidrug resistance (MDR) reversing activity in cancer, two major epimeric isolated from Tabernaemontana elegans, tabernaemontanine (1) and dregamine (2), were derivatized by alkylation the nitrogen. Twenty-six new derivatives (3–28) prepared reaction different aliphatic aromatic halides, whose structures elucidated ma...

BACKGROUND Costus speciosus, Cymbopogon citratus, and Tabernaemontana coronaria are herbal plants traditionally used as remedies for symptoms of tuberculosis (TB) including cough. The aims of the present study were to evaluate the in vitro anti-TB activity of different solvent partitions of these plants, to identify the phytochemical compounds, and to assess the effects of the most active parti...

Salah satu hutan lindung yang terletak di Yogyakarta adalah Mangunan, terdapat tegakan dominan yaitu Akasia, tetapi akhir- akhir ini mengancam akan menggeser Akasia Cembirit. Hal dapat dilihat dari meningkatnya densitas seedling dan sapling cembirit tahun 2016 sebesar (520 ind/Ha 26.800 ind/Ha) menjadi 860 30.200 pada 2017. Oleh karena itu penelitian dilakukan untuk mengetahui Struktur populasi...

Tropical rainforests are crucial in maintaining about 70% of the world’s plant and animal biodiversity also highest terrestrial carbon reservoir. This study aimed to determine tree species composition, structure stocks Deng National Park which is a semi-deciduous tropical forest (plots 1 2 transition zone savannah (plot 3). Plots demarcation enumeration followed standard protocols for permanent...