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Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Cytotoxic trichothecene derivatives from Trichothecium sp. DWS815
Peng-Ju Xu1, Ai-Lin Liang1, Wen-Yu Lu1
1Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, People's Republic of China.
None:
Ten novel trichothecene sesquiterpenoids including two new seco-trichothecenes, trichotheciumones A (1) and B (2), a new trichothecene sesquiterpenoid glycoside, trichothecinoside A (3), and seven new trichothecene sesquiterpenoids, trichothecrotocins T-Z (4-10), together with three new natural products (11-13) and thirteen known compounds (14-26), were isolated from the soil fungus Trichothecium sp. DWS815. The structures and absolute configurations of the new compounds were elucidated by extensive spectroscopic analyses and quantum chemistry ECD calculations. Given the notable anticancer properties of known trichothecenes, the isolated compounds were evaluated for the cytotoxic activities against three cancer cell lines (HCT116, 4T1, MHCC97H) and one normal cell line (GES-1). Cell cycle analysis revealed new compounds 7 and 8 induced G2/M phase arrest in HCT116 cancer cells, which resulted to cell proliferation inhibition activity.
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