共查询到20条相似文献,搜索用时 8 毫秒
1.
Tamiya J Dyck B Zhang M Phan K Fleck BA Aparicio A Jovic F Tran JA Vickers T Grey J Foster AC Chen C 《Bioorganic & medicinal chemistry letters》2008,18(11):3328-3332
A series of milnacipran analogs were synthesized and studied as monoamine transporter inhibitors, and several potent compounds with moderate lipophilicity were identified from the 1S,2R-isomers. Thus, 15l exhibited IC(50) values of 1.7nM at NET and 25nM at SERT, which were, respectively, 20- and 13-fold more potent than 1S,2R-milnacipran 1-II. 相似文献
2.
A new series of ketoprofen analogs were synthesized to evaluate their biological activities as selective cyclooxygenase-2 (COX-2) inhibitors. In vitro COX-1 and COX-2 inhibition studies showed that all compounds were potent and selective inhibitors of the COX-2 isozyme with IC50 values in the highly potent 0.057–0.085 μM range, and COX-2 selectivity indexes in the 115 to >1298.7 range. Compounds possessing azido pharmacophore group (8a and 8b) exhibited highly COX-2 inhibitory selectivity and potency even more than reference drug celecoxib. Molecular modeling studies indicated that the azido substituent can be inserted deeply into the secondary pocket of COX-2 active site for interactions with Arg513. 相似文献
3.
A series of kojic acid-derived compounds 6a-p bearing aryloxymethyl-1H-1,2,3-triazol-1-yl moiety were designed by modifying primary alcoholic group of kojic acid as tyrosinase inhibitors. The target compounds 6a-p were synthesized via click reaction. All compounds showed very potent anti-tyrosinase activity (IC50s = 0.06–6.80 µM), being superior to reference drug, kojic acid. In particular, the naphthyloxy analogs 6o and 6p were found to be 31–155 times more potent than kojic acid. The metal-binding study of selected compound 6o revealed that the prototype compound possesses metal-chelating ability, particularly with Cu2+ ions. The promising compounds 6o and 6p had acceptable safety profile as demonstrated by cytotoxicity assay against melanoma (B16) cell line and Human Foreskin Fibroblast (HFF) cells. 相似文献
4.
Kirkland TA Adler M Bauman JG Chen M Haeggström JZ King B Kochanny MJ Liang AM Mendoza L Phillips GB Thunnissen M Trinh L Whitlow M Ye B Ye H Parkinson J Guilford WJ 《Bioorganic & medicinal chemistry》2008,16(9):4963-4983
Leukotriene B4 (LTB4) is a potent pro-inflammatory mediator that has been implicated in the pathogenesis of multiple diseases, including psoriasis, inflammatory bowel disease, multiple sclerosis and asthma. As a method to decrease the level of LTB4 and possibly identify novel treatments, inhibitors of the LTB4 biosynthetic enzyme, leukotriene A4 hydrolase (LTA4-h), have been explored. Here we describe the discovery of a potent inhibitor of LTA4-h, arylamide of glutamic acid 4f, starting from the corresponding glycinamide 2. Analogs of 4f are then described, focusing on compounds that are both active and stable in whole blood. This effort culminated in the identification of amino alcohol 12a and amino ester 6b which meet these criteria. 相似文献
5.
A new series of triazinoindole analogs 1–11 were synthesized, characterized by EI-MS and 1H NMR, evaluated for α-glucosidase inhibitory potential. All eleven (11) analogs showed different range of α-glucosidase inhibitory potential with IC50 value ranging between 2.46 ± 0.008 and 312.79 ± 0.06 μM when compared with the standard acarbose (IC50, 38.25 ± 0.12 μM). Among the series, compounds 1, 3, 4, 5, 7, 8, and 11 showed excellent inhibitory potential with IC50 values 2.46 ± 0.008, 37.78 ± 0.05, 28.91 ± 0.0, 38.12 ± 0.04, 37.43 ± 0.03, 36.89 ± 0.06 and 37.11 ± 0.05 μM respectively. All other compounds also showed good enzyme inhibition. The binding modes of these analogs were confirmed through molecular docking. 相似文献
6.
Dropinski JF Akiyama T Einstein M Habulihaz B Doebber T Berger JP Meinke PT Shi GQ 《Bioorganic & medicinal chemistry letters》2005,15(22):5035-5038
A series of novel aryl indole-2-carboxylic acids has been identified as potent selective PPARgamma modulators. Their chemical synthesis and in vitro activities are discussed. Compound 5 was selected for in vivo testing in the db/db mouse model of type 2 diabetes and resulted in reduction of hyperglycemia at comparable plasma exposure when compared to rosiglitazone. 相似文献
7.
Nucleoside transporter inhibitors have potential therapeutic applications as anticancer, antiviral, cardioprotective and neuroprotective agents. Although quite a few potent inhibitors of the equilibrative nucleoside transporters are known, largely missing are the concentrative nucleoside transporter inhibitors. Phloridzin (3, Ki = 16.00 μM) is a known moderate inhibitor of the concentrative nucleoside transporters. We have synthesized and evaluated analogs of phloridzin at the hCNT3 nucleoside transporter. Within the series of synthesized analogs compound 16 (Ki = 2.88 μM), possessing a ribofuranose sugar unit instead of a glucopyranose as present in phloridzin, exhibited the highest binding affinity at the hCNT3 transporter. Phloridzin and compound 16 have also been shown to be selective for the hCNT3 transporter as compared with the hENT1 transporter. Compound 16 can serve as a new lead which after further modifications could yield selective and potent hCNT3 inhibitors. 相似文献
8.
Wu JP Wang J Abeywardane A Andersen D Emmanuel M Gautschi E Goldberg DR Kashem MA Lukas S Mao W Martin L Morwick T Moss N Pargellis C Patel UR Patnaude L Peet GW Skow D Snow RJ Ward Y Werneburg B White A 《Bioorganic & medicinal chemistry letters》2007,17(16):4664-4669
The discovery of a series of potent, carboline-based MK2 inhibitors is described. These compounds inhibit MK2 with IC50s as low as 10 nM, as measured in a DELFIA assay. An X-ray crystal structure reveals that they bind in a region near the p-loop and the hinge region of MK2a. 相似文献
9.
《Bioorganic & medicinal chemistry letters》2014,24(6):1592-1596
2-Amino-7-substituted benzoxazole analogs were identified by HTS as inhibitors of RSK2. Molecular modeling and medicinal chemistry techniques were employed to explore the SAR for this series with a focus of improving in vitro and target modulation potency and physicochemical properties. 相似文献
10.
Ando T Iwata M Zulfiqar F Miyamoto T Nakanishi M Kitade Y 《Bioorganic & medicinal chemistry》2008,16(7):3809-3815
2-Modified aristeromycin derivatives and their related analogs were synthesized to investigate their inhibitory activity against human and Plasmodium falciparum S-adenosyl-L-homocysteine hydrolase (PfSAHH). 2-Fluoroaristeromycin showed a strong inhibitory activity against PfSAHH selectively and complete resistance to adenosine deaminase. 相似文献
11.
In search of better α-glucosidase inhibitors, a series of novel hetarylcoumarins (3a-3j) were designed and synthesized through a facile multicomponent route where p-toluenesulfonic acid (PTSA) was explored as an efficient catalyst. These new scaffolds were further evaluated for their α-glucosidase inhibition potentials. All the derivatives exhibited good to excellent results which were comparable or even better than of standard drug acarbose. Of these compounds, a dihalogenated compound 3f was found to be the most effective one with IC50: 2.53 ± 0.002 µM. Molecular docking has predicted the plausible binding interactions of compounds 3f, 3g and 3j with α-glucosidase. 相似文献
12.
The different isomers of the dipeptide beta-N-gamma-glutamyl diaminopropionate inhibit L-glutamate-1-carboxylyase (GAD, EC-4.1.1.15) activity in mouse brain homogenates. The L-D isomer is the most effective as an inhibitor, while the D-D isomer is least inhibitory. The different isomers are neurotoxic to mice and the chick, the L-D isomer being the most toxic. The neurotoxicity of the isomers in mice was also associated with a significant lowering in GAD activity in the brains of convulsing mice. 相似文献
13.
By targeting the dual active sites of acetylcholinesterase (AChE), a new series of berberine derivatives was designed, synthesized, and evaluated as AChE inhibitors. Most of the derivatives inhibited AChE in the sub-micromolar range. Compound 8c, berberine linked with phenol by a 4-carbon spacer, showed the most potent inhibition of AChE. A kinetic study of AChE and BuChE indicated that a mix-competitive binding mode existed for these berberine derivatives. Molecular modeling studies confirmed that these hybrids target both the catalytic active site (CAS) and the peripheral anionic site (PAS) of AChE. This is the first report where AChE inhibitory activity has been associated with berberine as a lead molecule. 相似文献
14.
Novobiocin analogs lacking labile glycosidic ether have been designed, synthesized and evaluated for Hsp90 inhibitory activity. Replacement of the synthetically complex noviose sugar with simple aromatic side chains produced analogs that maintain moderate cytotoxic activity against MCF7 and SkBR3 breast cancer cell-lines. Rationale for the preparation of des-noviose novobiocin analogs in addition to their synthesis and biological evaluation are presented herein. 相似文献
15.
Anilkumar R. Kore Muthian Shanmugasundaram Irudaya Charles Quoc Hoang 《Bioorganic & medicinal chemistry letters》2010,20(9):2750-2754
This communication reports the first demonstration of synthesis and biological validation of modified pentapeptides, such as methoxysuccinyl-Ala-Ala-Ala-Pro-Leu-chloromethyl ketone 6b as a potent proteinase K inhibitor. The efficacy of MeOSuc-AAAPL-CH2Cl 6b analog in inhibiting the proteolytic activity of proteinase K was compared with the known MeOSuc-AAPV-CH2Cl analog. The examination of inhibitory activity using RT-PCR assay in the presence of proteinase K revealed that the MeOSuc-AAAPL-CH2Cl 6b inhibitor at a concentration of 0.05 mM allows a signal to be obtained for an exogenous target (‘Xeno RNA’) at 30 cycles (i.e., Ct = 30), whereas the control MeOSuc-AAPV-CH2Cl requires a fivefold higher concentration (0.25 mM) to produce the same Ct. A plausible explanation for the higher efficiency of MeOSuc-AAAPL-CH2Cl 6b over control is proposed based on the molecular modeling studies. 相似文献
16.
Ha HJ Hong MC Ko SW Kim YW Lee WK Park J 《Bioorganic & medicinal chemistry letters》2006,16(7):1880-1883
Constrained ceramide analogs were designed and synthesized by binding terminal alcohol and amine of ceramide with additional carbonyl functional group as 3-acetyl (3), 3-propionyl (4), 3-benzoyl (5), and 3-hexadecanoyl-4-(1-hydroxyhexadec-2-enyl)-oxazolidin-2-ones (6). Compounds 4 and 5 showed potent antileukemic activities against human leukemia HL-60 cells with good correlation between cell death and DNA fragmentation. 相似文献
17.
Sui Z Guan J Macielag MJ Jiang W Qiu Y Kraft P Bhattacharjee S John TM Craig E Haynes-Johnson D Clancy J 《Bioorganic & medicinal chemistry letters》2003,13(4):761-765
A series of N(2)-furoyl and N(2)pyrimidinyl beta-carbolines was discovered to possess potent inhibitory activity against PDE5. During the synthesis we developed a tandem resin quenching protocol, which allowed us to synthesize large number of target compounds in a rapid fashion. Representative compounds exhibit superior selectivity to sildenafil versus other isozymes of PDEs, and demonstrated in vivo efficacy in increasing introcavernosal pressure in dogs. 相似文献
18.
Dhimant Desai Ugur Salli Kent E. Vrana Shantu Amin 《Bioorganic & medicinal chemistry letters》2010,20(6):2044-2047
Cancer treatment and therapy has moved from conventional chemotherapeutics to more mechanism-based targeted approach. Disturbances in the balance of histone acetyltransferase (HAT) and deacetylase (HDAC) leads to a change in cell morphology, cell cycle, differentiation, and carcinogenesis. In particular, HDAC plays an important role in carcinogenesis and therefore it has been a target for cancer therapy. Structurally diverse group of HDAC inhibitors are known. The broadest class of HDAC inhibitor belongs to hydroxamic acid derivatives that have been shown to inhibit both class I and II HDACs. Suberoylanilide hydroxamic acid (SAHA) and Trichostatin A (TSA), which chelate the zinc ions, fall into this group. In particular, SAHA, second generation HDAC inhibitor, is in several cancer clinical trials including solid tumors and hematological malignancy, advanced refractory leukemia, metastatic head and neck cancers, and advanced cancers. To our knowledge, selenium-containing HDAC inhibitors are not reported in the literature. In order to find novel HDAC inhibitors, two selenium based-compounds modeled after SAHA were synthesized. We have compared two selenium-containing compounds; namely, SelSA-1 and SelSA-2 for their inhibitory HDAC activities against SAHA. Both, SelSA-1 and SelSA-2 were potent HDAC inhibitors; SelSA-2 having IC50 values of 8.9 nM whereas SAHA showed HDAC IC50 values of 196 nM. These results provided novel selenium-containing potent HDAC inhibitors. 相似文献
19.
Analogs of adenosine-3′,5′-cyclic phosphate (cAMP) modified in positions 2 (Cl, Br, SCH3) and 2′ (2,4-dinitrophenyl) and doubly modified in positions 1 and 2 (N1O and Cl), 2 and 2′ (Cl and 2,4-dinitrophenyl), have been synthesized by convenient methods. These derivatives have been examined as alternative activators of cAMP-dependent protein kinase isolated from bovine muscle and as alternative substrates for a cyclic phosphodiesterase from bovine heart. All analogs activated the kinase, most of them being more effective than cAMP. All were degraded by the diesterase, several at lower rates. 相似文献
20.
Suk Youn Kang Kwang-Seop Song Junwon Lee Sung-Han Lee Jinhwa Lee 《Bioorganic & medicinal chemistry》2010,18(16):6069-6079
With anticipation of the improvement in biological aspects in our SGLT2 program, novel pyridazinyl and thiazolyl analogs were designed and efficiently synthesized. The installation of the pyridazine ring at the anomeric carbon of d-glucopyranose was carried out in a stereoselective fashion. On the other hand, a series of thiazolyl analogs was also synthesized through a coupling reaction between perbenzyl gluconolactone 9 and 2-lithiothiazole. Biological activities of the compounds thus prepared were evaluated by the in vitro SGLT2 inhibition assay. Considering assay results, the novel benzylpyridazinyl and benzylthiazolyl analogs, disclosed in this article, could be a quick reference to prospective SGLT2 inhibitors useful for pharmacotherapy. 相似文献