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Synthesis and in silico studies of triazene‐substituted sulfamerazine derivatives as acetylcholinesterase and carbonic anhydrases inhibitors
Author(s) -
Bilginer Sinan,
Gul Halise I.,
Anil Baris,
Demir Yeliz,
Gulcin Ilhami
Publication year - 2021
Publication title -
archiv der pharmazie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 61
eISSN - 1521-4184
pISSN - 0365-6233
DOI - 10.1002/ardp.202000243
Subject(s) - chemistry , carbonic anhydrase , sulfamerazine , acetylcholinesterase , stereochemistry , tacrine , carbonic anhydrase i , acetazolamide , lipophilicity , proton nmr , aché , enzyme , organic chemistry , biochemistry , sulfadiazine , antibiotics , medicine , anesthesia
A novel series of sulfonamides, 4‐(3‐phenyltriaz‐1‐en‐1‐yl)‐ N ‐(4‐methyl‐2‐pyrimidinyl)benzenesulfonamides ( 1 – 9 ), was designed and synthesized by the diazo reaction between sulfamerazine and substituted aromatic amines for the first time. Their chemical structures were characterized by 1 H nuclear magnetic resonance (NMR), 13 C NMR, and high‐resolution mass spectra. The newly synthesized compounds were evaluated in terms of acetylcholineasterase (AChE) and human carbonic anhydrases (hCA) I and II isoenzymes inhibitory activities. According to the AChE inhibition results, the K i values of the compounds 1 – 9 were in the range of 19.9 ± 1.5 to 96.5 ± 20.7 nM against AChE. Tacrine was used as the reference drug and its K i value was 49.2 ± 2.7 nM against AChE. The K i values of the compounds 1 – 9 were in the range of 10.2 ± 2.6 to 101.4 ± 27.8 nM against hCA I, whereas they were 18.3 ± 4.4 to 48.1 ± 4.5 nM against hCA II. Acetazolamide was used as a reference drug and its K i values were 72.2 ± 5.4 and 52.2 ± 5.7 nM against hCA I and hCA II, respectively. The most active compounds, 1 (nonsubstituted) against AChE, 5 (4‐ethoxy‐substituted) against hCA I, and 8 (4‐bromo‐substituted) against hCA II, were chosen and docked at the binding sites of these enzymes to explain the inhibitory activities of the series. The newly synthesized compounds presented satisfactory pharmacokinetic properties via the estimation of ADME properties.