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Two New Altenusin/Thiazole Hybrids and a New Benzothiazole Derivative From the Marine Sponge-Derived Fungus

Two New Altenusin/Thiazole Hybrids and a New Benzothiazole Derivative From the Marine Sponge-Derived Fungus

Yaping Chen, Ruyan Chen, Jinhuai Xu, Yongqi Tian, Jiangping Xu, Yonghong Liu

Molecules. 2018 Nov 1;23(11):2844.

PMID: 30388842

Abstract:

Two novel altenusin-thiazole hybrids named altenusinoides A and B (1 and 2), a new benzothiazole derivative (3), and three known altenusin derivatives (4⁻6) have been obtained from the solid culture of the marine sponge-derived fungal strain, Alternaria sp. SCSIOS02F49. The structures of these new compounds were characterized by NMR, HRESIMS, and X-ray single crystal analysis. Compounds 1 and 2 possess an unusual altenusin-thiazole-fused skeleton core (6/6/5), and compound 3 represents the first benzothiazole derivative from fungi. Compounds 4 and 5 showed significant DPPH free-radical-scavenging activities with the prominent IC50 values of 10.7 ± 0.09 μM and 100.6 ± 0.025 μM, respectively. Additionally, compound 5 exhibited COX-2 inhibitory activity with an IC50 value of 9.5 ± 0.08 μM.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP31186126	Altenusin		31186-12-6	Price

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