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Paper | Special issue | Vol 103, No. 2, 2021, pp.827-838
Published online, 15th March, 2021
DOI: 10.3987/COM-20-S(K)50
Fasciospyrinadinone and Fasciospyrinadinol, Novel 3-Alkylpyridine Sesquiterpenoids from an Indonesian Marine Sponge, as Selective Growth Inhibitors of the Cancer Cells under Nutrient Starvation

Hirokazu Matsumoto, Tomoya Hisa, Kazunari Toda, Ryosuke Ishida, Andi Setiawan, Masayoshi Arai, and Naoyuki Kotoku*

*College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan

Abstract

On the guidance of the bioassay using PANC-1 cells adapted to the glucose starvation, two novel pyridine sesquiterpenoids named fasciospyrinadinone (1) and fasciospyrinadinol (2) were isolated from the Indonesian marine sponge of Petrosaspongia sp. The chemical structures of the compounds were established on the basis of the 1D and 2D NMR spectra data. Then, we accomplished the first total syntheses of 1 and 2. Compound 1 showed selective growth inhibitory activity against PANC-1 cells adapted to glucose starvation, with IC50 value of 13 µM.