p-Terphenyls From Aspergillus sp. GZWMJZ-055: Identification, Derivation, Antioxidant and α-Glycosidase Inhibitory Activities.

p-Terphenyls From Aspergillus sp. GZWMJZ-055: Identification, Derivation, Antioxidant and α-Glycosidase Inhibitory Activities.
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来自曲霉属的对三联苯。

DOI:
10.3389/fmicb.2021.654963
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发表时间:
2021
影响因子:
5.2
通讯作者:
Zhu W
Zhu W
中科院分区:
生物学2区
文献类型:
--
作者:
Xu Y;Wang Y;Wu D;He W;Wang L;Zhu W

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从内生真菌Aspergillussp. GZWMJZ-055的固体培养物中分离得到一个新的对三联苯化合物(1)和十五个已知的对三联苯化合物(2-16)。此外,以主体化合物(5-7)为原料,合成了9个对三联苯(17-25),其中衍生物18、19、21、22和25为新的对三联苯。化合物15和16也分别由化合物6和7在硅胶存在下通过空气氧化环化反应合成。这些对三联苯类化合物,尤其是4,2 ′,4 ″-三羟基(4-7,20,21)或4,4″-二羟基-1,2,1 ′,2 ′-呋喃(15,16)取代的对三联苯类化合物,具有显著的抗氧化活性和α-葡萄糖苷酶抑制活性,且对caco-2细胞的细胞毒性较低。结果表明,它们可能作为先导化合物或膳食补充剂用于治疗或预防糖尿病。
One new (1) and fifteen known (2–16) p-terphenyls were isolated from a solid culture of the endophytic fungus Aspergillus sp. GZWMJZ-055 by adding the leaves of its host Eucommia ulmoides. Furthermore, nine p-terphenyls (17–25) were synthesized from the main compounds (5–7), among which derivatives 18, 19, 21, 22, and 25 are new p-terphenyls. Compounds 15 and 16 were also, respectively, synthesized from compounds 6 and 7 by oxidative cyclization of air in the presence of silica gel. These p-terphenyls especially those with 4,2′,4″-trihydroxy (4–7, 20, 21) or 4, 4″-dihydroxy-1,2,1′,2′-furan (15, 16) substituted nucleus, exhibited significant antioxidant and α-glucosidase inhibitory activities and lower cytotoxicity to caco-2 cells. The results indicated their potential use as lead compounds or dietary supplements for treating or preventing the diabetes.
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