Synlett
DOI: 10.1055/s-0043-1775448
letter
Natural Products and Bioactive Small Molecules

Alterbrassacids A and B: Two Novel Fusicoccane Diterpenoids with Protective Activity Against H2O2-Induced Cardiomyocyte Injury from the Fungus Alternaria brassicicola

Rui Jiang
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
,
Shenglan Yang
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
,
Jiayi Guo
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
,
Xiaoqi Jin
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
,
Jiangchun Wei
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
,
Weiguang Sun
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
,
Jieru Guo
b   Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430033, P. R. of China
,
Yonghui Zhang
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
,
Zhengxi Hu
a   Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. of China
c   Hubei Shizhen Laboratory, Wuhan 430061, P. R. of China
› Institutsangaben
We acknowledge the provision of financial support by the National Natural Science Foundation of China (Nos. 82273811, 82104043, and U22A20380), the National Program for Support of Top-notch Young Professionals (No. 0106514050), the Hubei Provincial Natural Science Foundation of China (No. 2024AFA028), and the National Key Research and Development Program of China (No. 2021YFA0910500).


Abstract

Alterbrassacids A and B, two novel fusicoccane diterpenoids featuring a 5/7/6-fused ring system, along with a known structurally related compound were isolated from fungus Alternaria brassicicola. Their structures, including their absolute configurations, were determined by employing a wide range of spectroscopic analyses, DP4+ probability analyses, and ECD calculations. Preliminary studies showed that alterbrassacid A effectively protected cardiomyocyte H9C2 cells from H2O2-induced lactate dehydrogenase leakage. Furthermore, alterbrassacid A exhibited a significant protective effect on mitochondria by reducing the overproduction of reactive oxygen species and enhancing the mitochondrial membrane potential, highlighting it as a promising cardioprotectant.

Supporting Information



Publikationsverlauf

Eingereicht: 31. Oktober 2024

Angenommen nach Revision: 27. Januar 2025

Artikel online veröffentlicht:
12. März 2025

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