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New indole based hybrid oxadiazole scaffolds with N-substituted acetamides: As potent anti-diabetic agents.

Abstract：

:Current study is based on the sequential conversion of indolyl butanoic acid (1) into ethyl indolyl butanoate (2), indolyl butanohydrazide (3), and 1,3,4-oxadiazole-2-thiol analogs (4) by adopting chemical transformations. In a parallel series of reactions, 2-bromo-N-phenyl/arylacetamides (7a-l) were synthesized by reacting different amines derivatives (5a-l) with 2-bromoacetyl bromide (6) to serve as electrophile. Then, the synthesized electrophiles (7a-l) were treated with nucleophilic 1,3,4-oxadiazole-2-thiol analog (4) to afford a range of N-substituted derivatives (8a-l). The structural confirmation of all the synthetic compounds was carried out by IR, 1H-, 13C NMR, EI-MS, and CHN analysis data. All synthesized molecules (8a-l) were tested for their antidiabetic potential via inhibition of the α-glucosidase enzyme followed by their in silico study. Their cytotoxicity profile was also ascertained via hemolytic activity and all of them possessed very low cytotoxicity. Compounds 8h and 8l were found most active having IC50 values 9.46 ± 0.03 µM and 9.37 ± 0.03 µM, respectively. However, all other molecules also exhibited good to moderate inhibition potential with IC50 values between 12.68 ± 0.04-37.82 ± 0.07, compared to standard acarbose (IC50 = 37.38 ± 0.12 µM), hence can be used as lead molecules for further research in order to get better antidiabetic agents.

journal_name

Bioorg Chem

journal_title

Bioorganic chemistry

authors

Nazir M,Abbasi MA,Aziz-Ur-Rehman,Siddiqui SZ,Khan KM,Kanwal,Salar U,Shahid M,Ashraf M,Arif Lodhi M,Ali Khan F

doi

10.1016/j.bioorg.2018.08.010

subject

Has Abstract

pub_date

2018-12-01 00:00:00

pages

253-263

eissn

0045-2068

issn

1090-2120

pii

S0045-2068(18)30633-3

journal_volume

81

pub_type

杂志文章

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