- Design, synthesis,: In vitro and in vivo evaluation of tacrine-cinnamic acid hybrids as multi-target acetyl- and butyrylcholinesterase inhibitors against Alzheimer's disease
-
Previously, we have reported tacrine-ferulic acid hybrids as multi-target cholinesterase inhibitors against Alzheimer's disease. However, the detailed structure-activity relationship (SAR), especially regarding the ferulic acid moiety, has yet to be eluci
- Chen, Yao,Lin, Hongzhi,Zhu, Jie,Gu, Kai,Li, Qi,He, Siyu,Lu, Xin,Tan, Renxiang,Pei, Yuqiong,Wu, Liang,Bian, Yaoyao,Sun, Haopeng
-
-
Read Online
- A 13C NMR study of the structure of four cinnamic acids and their methyl esters
-
The 13C NMR spectra, both in DMSO solution and in the solid state of four cinnamic acids (p-methoxy, p-hydroxy, p-methyl, p-chloro) and their corresponding methyl esters have been recorded. The two main results in the solid state are: (i) the only significant difference between acids and esters chemical shifts concerns the C=O group which, on average, appears at 173 ppm in the acids and 168 ppm in the esters; (ii) the signals of the ortho and meta carbons both in the acids and the esters are splitted. The two "anomalies" dissapear in DMSO solution. These observations can be rationalized using simple GIAO/B3LYP/6-31G* calculations.
- Silva, A. M. S.,Alkorta, I.,Elguero, J.,Silva, V. L. M.
-
-
Read Online
- Synthesis and evaluation of new sesamol-based phenolic acid derivatives with hypolipidemic, antioxidant, and hepatoprotective effects
-
The objective of this study is to synthesize a series of sesamol-based phenolic acid derivatives, which were designed by combination principle. The hypolipidemic activity of all these compounds was preliminarily screened by acute hyperlipidemic mice model induced by Triton WR 1339, in which compound T6 exhibited more significant reducing plasma TG and TC than fenofibrate. Compound T6 was also found to obviously decrease TG and TC both in the plasma and hepatic tissue of high-fat-diet-induced hyperlipidemic mice. Moreover, T6 showed hepatoprotective effects, which remarkable amelioration in characteristic liver enzymes was examined and the histopathological observation displayed that compound T6 inhibited lipids accumulation in the hepatic. The levels of PPAR-α receptor related to lipids metabolism in hepatic tissue were upregulated after T6 treatment. Other potent effects of T6 such as antioxidant and anti-inflammatory activity were also observed. On the bases of these findings, compound T6 may serve as an effective hypolipidemic and hepatoprotective agent. [Figure not available: see fulltext.]
- Xie, Yundong,Liu, Jiping,Shi, Yongheng,Bin Wang,Wang, Xiaoping,Wang, Wei,Sun, Meng,Xu, Xinya,He, Shipeng
-
p. 1688 - 1702
(2021/07/26)
-
- Design, synthesis and evaluation of phenylfuroxan nitric oxide-donor phenols as potential anti-diabetic agents
-
Both nitric oxide (NO) dysfunction and oxidative stress have been regarded as the important factors in the development and progression of diabetes and its complications. Multifunctional compounds with hypoglycemic, NO supplementation and anti-oxidation will be the promising agents for treatment of diabetes. In this study, six phenylfuroxan nitric oxide (NO) donor phenols were synthesized, which were designed via a combination approach with phenylfuroxan NO-donor and natural phenols. These novel synthetic compounds were screened in vitro for α-glucosidase inhibition, NO releasing, anti-oxidation, anti-glycation and anti-platelet aggregation activity as well as vasodilatation effects. The results exhibited that compound T5 displayed more excellent activity than other compounds. Moreover, T5 demonstrated significant hypoglycemic activity in diabetic mice and oral glucose tolerance test (OGTT) mice. T5 also showed NO releasing and anti-oxidation in diabetic mice. Based on these results, compound T5 deserves further study as potential new multifunctional anti-diabetic agent with antioxidant, NO releasing, anti-platelet aggregation and vasodilatation properties.
- Xie, Yun-Dong,Shao, Li-Hua,Wang, Qiu-Tang,Bai, Yue,Li, Na,Yang, Guangde,Li, Yi-Ping,Bian, Xiao-Li
-
-
- Phenylsulfonylfuroxan NO-donor phenols: Synthesis and multifunctional activities evaluation
-
Phenylsulfonyfuroxan nitric oxide (NO)-donor phenols were designed, synthesized and evaluated. The compounds were designed through a symbiotic approach using selected phenols and phenylsulfonylfuroxan NO-donor. The antioxidant activities of the hybrid compounds T2–T6 showed to be good in vivo. Compounds T4 and T6 revealed excellent yeast α-glucosidase inhibitory activity and anti-glycosylation activity. All of the compounds exhibited strong NO releasing activity and significant anti-platelet aggregation activity. The inhibition of platelet aggregation was more than 50% at low concentration (1.5?μM) and 95% at higher concentration (15?μM and 150?μM). The vasodilatation experiment demonstrated that the six compounds under test exhibited definite vasodilation activity (pIC50 ranged from 5.698 to 6.383), especially compound T6 (pIC50 was 6.383) which was similar to sodium nitroprusside (pIC50 was 6.786). Both anticoagulant and vasodilatation effects were correlated with their NO releasing activities. These hybrid phenylsulfonyfuroxan-based NO-donor phenols offer a multifunctional prodrug design concept for the development of therapeutic or preventive agents for metabolic syndrome.
- Xie, Yundong,Yang, Yaping,Li, Sen,Xu, Yanhong,Lu, Wenfang,Chen, Zizhang,Yang, Guangde,Li, Yiping,Cao, Yongxiao,Bian, Xiaoli
-
p. 4407 - 4413
(2017/07/22)
-