- Design, synthesis, cytotoxic activity, and apoptosis inducing effects of 4- And N-substituted benzoyltaurinamide derivatives
-
In this study, a group of 4-substituted benzoyltaurinamide derivatives were designed, synthesized, and investigated for their anticancer activity against three cancer cell lines and one nontumorigenic cell line by MTT assay. Among the final compounds, methoxyphenyl derivatives 14, 15, 16 were found to be effective against all the tested cancerous cell lines with promising selectivity. The most active compounds were further evaluated to determine the molecular mechanism of their anticancer activity by using western blot assay and the Annexin V-FITC/PI test. Compound 14 (in SH-SY5Y and MDA-MB-231 cell lines) and 15 (in SH-SY5Y cell line) were found to induce intrinsic apoptotic pathway by upregulating BAX, caspase-3, and caspase-9, while downregulating Bcl-2 and Bcl-xL expression levels. According to mechanistic studies, compounds displayed their anticancer activity via three different mechanisms: a. caspase-dependent, b. caspase-independent, and c. caspase-dependent pathway that excluded caspase-9 activation. As a result, this study provides interesting data which can be used to design new taurine-based anticancer derivatives.
- Akgül, ?zlem,Erdo?an, Mümin Alper,Birim, Dervi?,Kayaba?i, ?a?la,Gündüz, Cumhur,Arma?an, Güliz
-
p. 1674 - 1693
(2021/01/05)
-
- An Unusual Natural Product Primary Sulfonamide: Synthesis, Carbonic Anhydrase Inhibition, and Protein X-ray Structures of Psammaplin C
-
Psammaplin C is one of only two described natural product primary sulfonamides. Here we report the synthesis of psammaplin C and evaluate the inhibition profile against therapeutically relevant carbonic anhydrase (CA) zinc metalloenzymes. The compound exhibited unprecedented inhibition of an important cancer-associated isozyme, hCA XII, with a Ki of 0.79 nM. The compound also displayed good isoform selectivity for hCA XII over other CAs. We present the first reported protein X-ray crystal structures of psammaplin C in complex with human CAs. We engineered the easily crystallized hCA II enzyme to mimic both the hCA IX and hCA XII binding sites and then utilized protein X-ray crystallography to determine the binding pose of psammaplin C within the hCA II, hCA IX, and hCA XII mimic active sites, all to high resolution. This is the first time a natural product primary sulfonamide inhibitor has been assessed for inhibition and binding to CAs.
- Mujumdar, Prashant,Teruya, Kanae,Tonissen, Kathryn F.,Vullo, Daniela,Supuran, Claudiu T.,Peat, Thomas S.,Poulsen, Sally-Ann
-
p. 5462 - 5470
(2016/07/06)
-
- Synthesis and antiviral, insecticidal, and fungicidal activities of gossypol derivatives containing alkylimine, oxime or hydrazine moiety
-
Gossypol is a part of the cotton plant's defense system against pathogens and herbivorous insects. To discover gossypol analogs with broad spectrum and high activity, a series of gossypol alkylamine Schiff base, oxime and hydrazone derivatives were synthesised and bioassayed. The biological results indicated that most of these derivatives exhibited higher anti-TMV activity than gossypol. Interestingly, the activities of compounds 10, 15, 18, 20, 23 and 26 were much higher than that of ribavirin. Furthermore, compound 26, which was low toxicity to rat, showed better activity than control plant virus inhibitors in the field. Additionally, allyl amine Schiff base (9) displayed remarkable insecticidal activities against Mythimna separata, Helicoverpa armigera and Ostrinia nubilalis, whereas (pyridin-3-yl)methanamine Schiff base (13) showed excellent activity against Culex pipiens pallens. The fungicidal results revealed that all of compounds exhibited good activity against Physalospora piricola.
- Li, Ling,Li, Zheng,Wang, Kailiang,Liu, Yuxiu,Li, Yongqiang,Wang, Qingmin
-
p. 474 - 483
(2016/01/25)
-
- Synthesis and QSAR of Quinazoline Sulfonamides As Highly Potent Human Histamine H4 Receptor Inverse Agonists
-
Hit optimization of the class of quinazoline containing histamine H 4 receptor (H4R) ligands resulted in a sulfonamide substituted analogue with high affinity for the H4R. This moiety leads to improved physicochemical properties and is believed to probe a distinct H4R binding pocket that was previously identified using pharmacophore modeling. By introducing a variety of sulfonamide substituents, the H4R affinity was optimized. The interaction of the new ligands, in combination with a set of previously published quinazoline compounds, was described by a QSAR equation. Pharmacological studies revealed that the sulfonamide analogues have excellent H4R affinity and behave as inverse agonists at the human H4R. In vivo evaluation of the potent 2-(6-chloro-2-(4-methylpiperazin-1-yl)quinazoline4-amino)-N- phenylethanesulfonamide (54) (pki = 8.31 ± 0.10) revealed it to have anti-inflammatory activity in an animal model of acute inflammation.
- Smits, Rogier A.,Adami, Maristella,Istyastono, Enade P.,Zuiderveld, Obbe P.,Van Dam, Cindy M. E.,De Kanter, Frans J. J.,Jongejan, Aldo,Coruzzi, Gabriella,Leurs, Rob,De Esch, Iwan J. P.
-
experimental part
p. 2390 - 2400
(2010/09/11)
-
- Quinazolines and related heterocyclic compounds and their therapeutic use
-
A compound of the formula wherein X is CR1 or N; Y is CR3 or N; R1, R3, R4, R5 and R6 are independently H, F, Cl, Br, I, or a hydrocarbon group which optionally contains one or more heteroatoms; R7 is a heterocyclic group including one or more N atoms; R' is Rx or NRyRz wherein Rx, Ry and Rz are each H or the same or different groups, including cyclic groups formed by Ry and Rz with the N atom, of up to 20 C atoms and optionally including up to 3 further heteroatoms selected from N, O and S; or a pharmaceutically acceptable salt, ester or solvate thereof, has therapeutic utility.
- -
-
Page/Page column 14
(2009/07/18)
-
- N - ( 2 - aryl - propionyl ) - sulfonamides and pharmaceutical preparations containing them
-
The compounds of formula 1, wherein R and R2 are as defined in the disclosure, are useful in the prevention and treatment of tissue damage due to exacerbated recruitment of polymorphonuclear neutrophils (PMN leukocytes) at the inflammatory sites.
- -
-
-
- Synthesis and anticonvulsant activity of N,N-phthaloyl derivatives of central nervous system inhibitory amino acids
-
In order to study the influence of the length of the amino acid chain of N,N-phthaloyl-amino acid amides as analogues of the former anticonvulsant taltrimide on the seizure-antagonizing activity glycine, β-alanine and γ-aminobutyric acid (GABA) derivatives were synthesized. The corresponding taurine derivatives were also included. Generally, the glycine-derived amides showed a higher activity than the β-alanine and GABA derivatives in the maximal electroshock seizure (MES) test in mice upon intraperitoneal administration. The activity was comparable to the respective taurine derivatives. The N,N-phthaloyl-glycine amides were also active in the MES test upon oral administration to rats. No significant activity was noted in the seizure threshold test with subcutaneous pentylene-tetrazole. The ED50 of N,N-phthaloyl-glycine ethyl amide (4b) in the MES test upon intraperitoneal administration to mice was 19.1 mg/kg. On a molar basis this activity is comparable to the activity of phenytoin with little toxicity in the rotorod test. In conclusion, N,N-phthaloyl-glycine amides might represent promising antiepileptic drugs.
- Usifoh, Cyril O.,Lambert, Didier M.,Wouters, Johan,Scriba, Gerhard K.E.
-
p. 323 - 331
(2007/10/03)
-
- Synthesis and biological properties of new 1β-methylcarbapenems
-
The synthesis and biological activity of the novel series of 1β- methylcarbapenems, 1 and 2 were described. Most compounds displayed high potent antibacterial activity. The best compound in this series, 2a (IH201; R2=NH2) showed an excellent and a broad spectrum as well as high renal DHP- I stability. It also possessed good in vivo efficacy and high safety.
- Shin, Kye Jung,Yoo, Kyung Ho,Kim, Dong Jin,Park, Sang Woo,Ko, Bong Suck,Lee, Sang Joo,Huh, Jae Doo,Park, Seung Yong
-
p. 1607 - 1612
(2007/10/03)
-