共查询到20条相似文献,搜索用时 593 毫秒
1.
Wilson SC Atrash B Barlow C Eccles S Fischer PM Hayes A Kelland L Jackson W Jarman M Mirza A Moreno J Nutley BP Raynaud FI Sheldrake P Walton M Westwood R Whittaker S Workman P McDonald E 《Bioorganic & medicinal chemistry》2011,19(22):6949-6965
The cyclin-dependent kinase (CDK) inhibitor seliciclib (1, CYC202) is in phase II clinical development for the treatment of cancer. Here we describe the synthesis of novel purines with greater solubility, lower metabolic clearance, and enhanced potency versus CDKs. These compounds exhibit novel selectivity profiles versus CDK isoforms. Compound αSβR-21 inhibits CDK2/cyclin E with IC(50)=30 nM, CDK7-cyclin H with IC(50)=1.3 μM, and CDK9-cyclinT with IC(50)=0.11 μM; it (CCT68127) inhibits growth of HCT116 colon cancer cells in vitro with GI(50)=0.7 μM; and shows antitumour activity when dosed p.o. at 50mg/kg to mice bearing HCT116 solid human tumour xenografts. 相似文献
2.
S Rolin J M Dogné C Michaux J Delarge B Masereel 《Prostaglandins, leukotrienes, and essential fatty acids》2001,65(2):67-72
The pharmacomodulation of sulfonylureas structurally related to torasemide and characterized by a TXA(2)antagonism led to the synthesis of BM-573. This original molecule showed a high affinity (IC(50)1.3 nM) for the TXA(2)receptor of human platelets in comparison with both reference compounds, SQ-29548 (IC(50)21 nM) and sulotroban (IC(50)930 nM). Moreover, this torasemide derivative was found to be a potent inhibitor of human platelet aggregation induced by arachidonic acid (ED(100)=0.13 microM) or by U-46619 (ED(50)=0.24 microM), a TXA(2)agonist. BM-573 relaxed the isolated rat thoracic aorta (ED(50)=28.4 nM) and guinea-pig trachea (ED(50)=17.7 nM) contracted by U-46619. BM-573 (1 microM) completely reduced the platelet production of TXB(2)induced by arachidonic acid. Finally, BM-573 (30 mg/kg, per os) lost the diuretic properties of torasemide in rats. 相似文献
3.
Chao J Taveras AG Chao J Aki C Dwyer M Yu Y Purakkattle B Rindgen D Jakway J Hipkin W Fosetta J Fan X Lundell D Fine J Minnicozzi M Phillips J Merritt JR 《Bioorganic & medicinal chemistry letters》2007,17(13):3778-3783
A novel series of cyclobutenedione centered C(4)-alkyl substituted furanyl analogs was developed as potent CXCR2 and CXCR1 antagonists. Compound 16 exhibits potent inhibitory activities against IL-8 binding to the receptors (CXCR2 Ki=1 nM, IC(50)=1.3 nM; CXCR1 Ki=3 nM, IC(50)=7.3 nM), and demonstrates potent inhibition against both Gro-alpha and IL-8 induced hPMN migration (chemotaxis: CXCR2 IC(50)=0.5 nM, CXCR1 IC(50)=37 nM). In addition, 16 has shown good oral pharmacokinetic profiles in rat, mouse, monkey, and dog. 相似文献
4.
Biftu T Feng D Qian X Liang GB Kieczykowski G Eiermann G He H Leiting B Lyons K Petrov A Sinha-Roy R Zhang B Scapin G Patel S Gao YD Singh S Wu J Zhang X Thornberry NA Weber AE 《Bioorganic & medicinal chemistry letters》2007,17(1):49-52
Replacement of the triazolopiperazine ring of sitagliptin (DPP-4 IC(50)=18nM) with 3-(2,2,2-trifluoroethyl)-1,4-diazepan-2-one gave dipeptidyl peptidase IV (DPP-4) inhibitor 1 which is potent (DPP-4 IC(50)=2.6nM), selective, and efficacious in an oral glucose tolerance test in mice. It was selected for extensive preclinical development as a potential back-up candidate to sitagliptin. 相似文献
5.
Manley PJ Balitza AE Bilodeau MT Coll KE Hartman GD McFall RC Rickert KW Rodman LD Thomas KA 《Bioorganic & medicinal chemistry letters》2003,13(10):1673-1677
2,4-Disubstituted pyrimidines were synthesized as a novel class of KDR kinase inhibitors. Evaluation of the SAR of the screening lead compound 1 (KDR IC(50)=105 nM, Cell IC(50)=8% inhibition at 500 nM) led to the potent 3,5-dimethylaniline derivative 2d (KDR IC(50)=6 nM, cell IC(50)=19 nM). 相似文献
6.
Huang W Tang L Shi Y Huang S Xu L Sheng R Wu P Li J Zhou N Hu Y 《Bioorganic & medicinal chemistry》2011,19(23):7158-7167
A novel series of quinoxaline derivatives, as Multi-Target-Directed Ligands (MTDLs) for AD treatment, were designed by lending the core structural elements required for H(3)R antagonists and hybridizing BACE 1 inhibitor 1 with AChE inhibitor BYYT-25. A virtual database consisting of quinoxaline derivatives was first screened on a pharmacophore model of BACE 1 inhibitors, and then filtered by a molecular docking model of AChE. Seventeen quinoxaline derivatives with high score values were picked out, synthesized and evaluated for their biological activities. Compound 11a, the most effective MTDL, showed the potent activity to H(3)R/AChE/BACE 1 (H(3)R antagonism, IC(50)=280.0 ± 98.0 nM; H(3)R inverse agonism, IC(50)=189.3 ± 95.7 nM; AChE, IC(50)=483 ± 5 nM; BACE 1, 46.64±2.55% inhibitory rate at 20 μM) and high selectivity over H(1)R/H(2)R/H(4)R. Furthermore, the protein binding patterns between 11a and AChE/BACE 1 showed that it makes several essential interactions with the enzymes. 相似文献
7.
Nishikawa-Shimono R Sekiguchi Y Koami T Kawamura M Wakasugi D Watanabe K Wakahara S Matsumoto K Takayama T 《Bioorganic & medicinal chemistry letters》2012,22(9):3305-3310
Synthesis and structure-activity relationship of a novel series of isoquinoline CRTH2 receptor antagonists are described. One of the most potent compounds, TASP0376377 (6m), showed not only potent binding affinity (IC(50)=19 nM) but also excellent functional antagonist activity (IC(50)=13 nM). TASP0376377 was tested for its ability of a chemotaxis assay to show the effectiveness (IC(50)=23 nM), which was in good agreement with the CRTH2 antagonist potency. Furthermore, TASP0376377 showed sufficient selectivity for binding to CRTH2 over the DP1 prostanoid receptor (IC(50)>1 μM) and COX-1 and COX-2 enzymes (IC(50)>10 μM). 相似文献
8.
Lézé MP Le Borgne M Pinson P Palusczak A Duflos M Le Baut G Hartmann RW 《Bioorganic & medicinal chemistry letters》2006,16(5):1134-1137
The synthesis and the aromatase (CYP19) inhibitory activity of 5-[(aryl)(imidazol-1-yl)methyl]-1H-indoles were reported. Among the tested racemate compounds, 5-[(4-chlorophenyl)(1H-imidazol-1-yl)methyl]-1H-indole 8b emerged as a potent CYP19 inhibitor (IC(50)=15.3 nM). Chiral chromatography allowed isolation of the (+) enantiomer 8b2, which was about twice as active as the racemate (IC(50)=9 nM). 相似文献
9.
Biftu T Scapin G Singh S Feng D Becker JW Eiermann G He H Lyons K Patel S Petrov A Sinha-Roy R Zhang B Wu J Zhang X Doss GA Thornberry NA Weber AE 《Bioorganic & medicinal chemistry letters》2007,17(12):3384-3387
Molecular modeling was used to design a rigid analog of sitagliptin 1. The X-ray crystal structure of sitagliptin bound to DPP-4 suggested that the central beta-amino butyl amide moiety could be replaced with a cyclohexylamine group. This was confirmed by structural analysis and the resulting analog 2a was synthesized and found to be a potent DPP-4 inhibitor (IC(50)=21 nM) with excellent in vivo activity and pharmacokinetic profile. 相似文献
10.
AK Ghosh S Pandey S Gangarajula S Kulkarni X Xu KV Rao X Huang J Tang 《Bioorganic & medicinal chemistry letters》2012,22(17):5460-5465
Structure-based design, synthesis, and biological evaluation of a series of dihydroquinazoline-derived β-secretase inhibitors incorporating thiazole and pyrazole-derived P2-ligands are described. We have identified inhibitor 4f which has shown potent enzyme inhibitory (K(i)=13nM) and cellular (IC(50)=21nM in neuroblastoma cells) assays. A model of 4f was created based upon the X-ray structure of 3a-bound β-secretase. The model suggested possible interactions in the active site. 相似文献
11.
Ohta H Ishizaka T Tatsuzuki M Yoshinaga M Iida I Tomishima Y Toda Y Saito S 《Bioorganic & medicinal chemistry letters》2007,17(22):6299-6304
A novel series of N-alkylidenearylcarboxamides 4, a CB(2) receptor agonist, were synthesized and evaluated for activity against the human CB(2) receptor. In a previous paper, we reported that sulfonamide derivative 1 acted as a potent CB(2) receptor agonist (IC(50)=65 nM, EC(50)=19 nM, E(max)=90%). However, compound 1 also exhibited poor metabolic stability in human liver microsomes. During the structural modification of 1, we found that a novel series of N-alkylidenearylcarboxamide, 4-1, had a moderate affinity for the CB(2) receptor (IC(50)=260 nM, EC(50)=86 nM, E(max)=100%) and good metabolic stability in human liver microsomes. We explored its analogues to discover compounds with a high affinity for the CB(2) receptor and with good oral bioavailability. Among them, compounds 4-9 and 4-27 had high affinities for the human CB(2) receptor (CB(2) IC(50)=13 nM and 1.2 nM) and a high selectivity for CB(2) (CB(1) IC(50)/CB(2) IC(50)=270 and 1600); furthermore, significant plasma levels were observed following oral administration in rats (C(max)=233 ng/mL and 148 ng/mL, respectively, after a dose of 10 mg/kg). Furthermore, compound 4-9 had good oral bioavailability (F=52%, 3mg/kg). 相似文献
12.
Tanaka R Rubio A Harn NK Gernert D Grese TA Eishima J Hara M Yoda N Ohashi R Kuwabara T Soga S Akinaga S Nara S Kanda Y 《Bioorganic & medicinal chemistry》2007,15(3):1363-1382
The design and synthesis of a novel piperidine series of farnesyltransferase (FTase) inhibitors with reduced potential for metabolic glucuronidation are described. The various substitution and exchange of the phenyl group at the C-2 position of the previously described 2-(4-hydroxy)phenyl-3-nitropiperidine 1a (FTase IC(50)=5.4nM) resulted in metabolically stable compounds with potent FTase inhibition (14a IC(50)=4.3nM, 20a IC(50)=3.0nM, and 50a IC(50)=16nM). Molecular modeling studies of these compounds complexed with FTase and farnesyl pyrophosphate are also described. 相似文献
13.
Sayle KL Bentley J Boyle FT Calvert AH Cheng Y Curtin NJ Endicott JA Golding BT Hardcastle IR Jewsbury P Mesguiche V Newell DR Noble ME Parsons RJ Pratt DJ Wang LZ Griffin RJ 《Bioorganic & medicinal chemistry letters》2003,13(18):3079-3082
A series of O(4)-cyclohexylmethyl-5-nitroso-6-aminopyrimidines bearing 2-arylamino substituents was synthesised and evaluated for CDK1 and CDK2 inhibitory activity. Consistent with analogous studies with O(6)-cyclohexylmethylpurines, 2-arylaminopyrimidines with a sulfonamide or carboxamide group at the 4'-position were potent inhibitors, with IC(50) values against CDK2 of 1.1+/-0.3 and 34+/-8 nM, respectively. The crystal structure of the 4'-carboxamide derivative, in complex with phospho-Thr160 CDK2/cyclin A, confirmed the expected binding mode of the inhibitor, and revealed an additional interaction between the carboxamide function and an aspartate residue. 相似文献
14.
Thompson JE Cubbon RM Cummings RT Wicker LS Frankshun R Cunningham BR Cameron PM Meinke PT Liverton N Weng Y DeMartino JA 《Bioorganic & medicinal chemistry letters》2002,12(8):1219-1223
Jak3 is a protein tyrosine kinase that is associated with the shared gamma chain of receptors for cytokines IL2, IL4, IL7, IL9, and IL13. We have discovered that a pyridone-containing tetracycle (6) may be prepared from trisubstituted imidazole (5) in high yield by irradiation with >350 nm light. Compound 6 inhibits Jak3 with K(I)=5 nM; it also inhibits Jak family members Tyk2 and Jak2 with IC(50)=1 nM and murine Jak1with IC(50)=15 nM. Compound 6 was tested as an inhibitor of 21 other protein kinases; it inhibited these kinases with IC(50)s ranging from 130 nM to >10 microM. Compound 6 also blocks IL2 and IL4 dependent proliferation of CTLL cells and inhibits the phosphorylation of STAT5 (an in vivo substrate of the Jak family) as measured by Western blotting. 相似文献
15.
Kim MK Min J Choi BY Lim H Cho YH Lee CH 《Journal of microbiology and biotechnology》2007,17(10):1712-1716
To generate new scaffold candidates as highly selective and potent cyclin-dependent kinase (CDK) inhibitors, structure-based drug screening was performed utilizing 3D pharmacophore conformations of known potent inhibitors. As a result, CR229 (6-bromo-2,3,4,9-tetrahydro-carbolin-1-one) was generated as the hit-compound. A computational docking study using the X-ray crystallographic structure of CDK2 in complex with CR229 was evaluated. This predicted binding mode study of CR229 with CDK2 demonstrated that CR229 interacted effectively with the Leu83 and Glu81 residues in the ATP-binding pocket of CDK2 for the possible hydrogen bond formation. Furthermore, biochemical studies on inhibitory effects of CR229 on various kinases in the human cervical cancer HeLa cells demonstrated that CR229 was a potent inhibitor of CDK2 (IC50: 3 microM), CDK1 (IC50: 4.9 microM), and CDK4 (IC50: 3 microM), yet had much less inhibitory effect (IC50: >20 microM) on other kinases, such as casein kinase 2-1 (CK2- alpha1), protein kinase A (PKA), and protein kinase C (PKC). Accordingly, these data demonstrate that CR229 is a potent CDK inhibitor with anticancer efficacy. 相似文献
16.
Zhu G Conner S Zhou X Shih C Brooks HB Considine E Dempsey JA Ogg C Patel B Schultz RM Spencer CD Teicher B Watkins SA 《Bioorganic & medicinal chemistry letters》2003,13(7):1231-1235
A novel series of pyrrolo[3,4-c] carbazoles fused with a quinolinyl/isoquinolinyl moiety were synthesized and their D1/CDK4 inhibitory and antiproliferative activity were evaluated. Compound 8H, 14H-isoquinolinyl[6,5-a]-pyrrolo[3,4-c]carbazole-7,9-dione (1d) was found to be a highly potent D1/CDK4 inhibitor with an IC(50) of 69 nM. Compound 1d also inhibited tumor cell growth, arrested tumor cells in G1 phase and inhibited pRb phosphorylation. 相似文献
17.
Nitta A Iura Y Tomioka H Sato I Morihira K Kubota H Morokata T Takeuchi M Ohta M Tsukamoto S Imaoka T Takahashi T 《Bioorganic & medicinal chemistry letters》2012,22(15):4951-4954
The synthesis and structure-activity relationships of ureas as CCR3 antagonists are described. Optimization starting with lead compound 2 (IC(50)=190 nM) derived from initial screening hit compound 1 (IC(50)=600 nM) led to the identification of (S)-N-((1R,3S,5S)-8-((6-fluoronaphthalen-2-yl)methyl)-8-azabicyclo[3.2.1]octan-3-yl)-N-(2-nitrophenyl)pyrrolidine-1,2-dicarboxamide 27 (IC(50)=4.9 nM) as a potent CCR3 antagonist. 相似文献
18.
Ruchelman AL Man HW Chen R Liu W Lu L Cedzik D Zhang L Leisten J Collette A Narla RK Raymon HK Muller GW 《Bioorganic & medicinal chemistry》2011,19(21):6356-6374
A series of 1,1-diarylalkene derivatives were prepared to optimize the properties of CC-5079 (1), a dual inhibitor of tubulin polymerization and phosphodiesterase 4 (PDE4). By using the 3-ethoxy-4-methoxyphenyl PDE4 pharmacophore as one of the aromatic rings, a significant improvement in PDE4 inhibition was achieved. Compound 28 was identified as a dual inhibitor with potent PDE4 (IC(50)=54 nM) and antitubulin activity (HCT-116 IC(50)=34 nM and tubulin polymerization IC(50) ~1 μM). While the nitrile group at the alkene terminus was generally required for potent antiproliferative activity, its replacement was tolerated if there was a hydroxyl or amino group on one of the aryl rings. Conveniently, this group could also serve as a handle for amino acid derivatization to improve the compounds' solubility. The glycinamide analog 45 showed significant efficacy in the HCT-116 xenograft model, with 64% inhibition of tumor growth upon dosing at 20 mg/kg qd. 相似文献
19.
Shahid I Patel CH Dhanani S Owen CP Ahmed S 《The Journal of steroid biochemistry and molecular biology》2008,110(1-2):18-29
We report the synthesis, biochemical evaluation and rationalisation of the inhibitory activity of a number of azole-based compounds as inhibitors of the two components of the cytochrome P-450 enzyme 17alpha-hydroxylase/17,20-lyase (P450(17alpha)), i.e. 17alpha-hydroxylase (17alpha-OHase) and 17,20-lyase (lyase). The results suggest that the compounds synthesised are potent inhibitors, with 7-phenyl heptyl imidazole (11) (IC(50)=320 nM against 17alpha-OHase and IC(50)=100 nM against lyase); 1-[7-(4-fluorophenyl) heptyl] imidazole (14) (IC(50)=170 nM against 17alpha-OHase and IC(50)=57 nM against lyase); 1-[5-(4-bromophenyl) pentyl] imidazole (19) (IC(50)=500 nM against 17alpha-OHase and IC(50)=58 nM against lyase) being the most potent inhibitors within the current study, in comparison to ketoconazole (KTZ) (IC(50)=3.76 microM against 17alpha-OHase and IC(50)=1.66 microM against lyase). Furthermore, consideration of the inhibitory activity against the two components shows that all of the compounds tested are less potent towards the 17alpha-OHase in comparison to the lyase component, a desirable property in the development of novel inhibitors of P450(17alpha). From the modelling of these compounds onto the novel substrate heme complex (SHC) for the overall enzyme complex, the length of the compound, along with its ability to undergo interaction with the active site corresponding to the C(3) area of the steroidal backbone, are suggested to play a key role in determining the overall inhibitory activity. 相似文献
20.
Murata T Shimada M Sakakibara S Yoshino T Masuda T Shintani T Sato H Koriyama Y Fukushima K Nunami N Yamauchi M Fuchikami K Komura H Watanabe A Ziegelbauer KB Bacon KB Lowinger TB 《Bioorganic & medicinal chemistry letters》2004,14(15):4019-4022
A series of 2-amino-3-cyano-4-alkyl-6-(2-hydroxyphenyl)pyridine derivatives was synthesized and evaluated as I kappaB kinase beta (IKK-beta) inhibitors. Modification of a novel IKK-beta inhibitor 1 (IKK-beta IC(50)=1500 nM, Cell IC(50)=8000 nM) at the 4-phenyl ring and 6-phenol group on the pyridine core ring resulted in a marked increased in biological activities. An optimized compound, 2-amino-6-[2-(cyclopropylmethoxy)-6-hydroxyphenyl]-4-piperidin-4-yl nicotinonitrile, exhibited excellent in vitro profiles (IKK-beta IC(50)=8.5 nM, Cell IC(50)=60 nM) and a strong oral efficacy in in vivo anti-inflammatory assays (significant effects at 1mg/kg, po in arachidonic acid-induced ear edema model in mice). 相似文献