Identification of the benzodiazepines as a new class of antileishmanial agent.

abstract：:Three new (1-3) and one known (4) bioactive terpenoids were isolated from the seeds of Silybum marianum based on the investigation to get new NO inhibitors. Their structures were determined by extensive NMR (1D and 2D NMR) and MS spectroscopic data, and the absolute configurations were identified by experimental and c...

journal_title：Bioorganic & medicinal chemistry letters

authors： Qin NB,Li SG,Yang XY,Gong C,Zhang XY,Wang J,Li DH,Guo YQ,Li ZL,Hua HM

更新日期：2017-05-15 00:00:00

abstract：:Arenobufagin is a naturally occurring bufadienolide showing promising antitumor activity accompanied however with apparent cardiac toxicity. Following the recent discovery that oxidative damage possibly be an important cause of the cardiac toxicity of cardenolides, a strategy fusing the antitumor agent arenobufagin wi...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hou W,Huang ZX,Xu HG,Lin J,Zhang DM,Peng QL,Lin H,Chang YQ,Wang LH,Yao Z,Sun PH,Chen WM

更新日期：2018-11-01 00:00:00

abstract：:Thirty-two new derivatives of cerpegin (1,1,5-trimethylfuro[3,4-c]pyridine-3,4-dione) were designed and synthesized in high yield by a new method, combining several C(1) and N(5) substituents. All compounds were tested for their inhibitory effect on the CT-L, T-L and PA proteolytic activities of a purified mammalian 2...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hovhannisyan A,Pham TH,Bouvier D,Qin L,Melikyan G,Reboud-Ravaux M,Bouvier-Durand M

更新日期：2013-05-01 00:00:00

abstract：:The effect of 2'-O-(N-methylcarbamoyl)ethyl (MCE) modification on splice-switching oligonucleotides (SSO) was systematically evaluated. The incorporation of five MCE nucleotides at the 5'-termini of SSOs effectively improved the splice switching effect. In addition, the incorporation of 2'-O-(N-methylcarbamoylethyl)-5...

journal_title：Bioorganic & medicinal chemistry letters

authors： Masaki Y,Yamamoto K,Inde T,Yoshida K,Maruyama A,Nagata T,Tanihata J,Takeda S,Sekine M,Seio K

更新日期：2019-01-15 00:00:00

abstract：:A facile 1,3-dipolar cycloaddition of azomethine ylide generated in situ from the reaction of 1,3-thiazolane-4-carboxylic acid and isatin to 2-arylidene-1,3-indanediones furnished novel dispiro-oxindolylpyrrolothiazoles regio- and stereo-selectively in moderate to good yields (60-92%). In vitro antitubercular screenin...

journal_title：Bioorganic & medicinal chemistry letters

authors： Maheswari SU,Balamurugan K,Perumal S,Yogeeswari P,Sriram D

更新日期：2010-12-15 00:00:00

abstract：:Nobiletin, a major component of polymethoxyflavones in citrus fruits, has a broad spectrum of health beneficial properties including anti-inflammatory and anti-carcinogenic activities. The metabolite identification of nobiletin in mouse urine has concluded that it undergoes mono-demethylation (3'- and 4'-demethylnobil...

journal_title：Bioorganic & medicinal chemistry letters

authors： Li S,Sang S,Pan MH,Lai CS,Lo CY,Yang CS,Ho CT

更新日期：2007-09-15 00:00:00

abstract：:Structural hybridization of preclinically and clinically validated pharmacologically active molecules has emerged as a promising tool to develop new generations of safe and highly efficient drug candidates against various diseases including microbial infections, virus infections and cancer. Strategies of drug-drug com...

journal_title：Bioorganic & medicinal chemistry letters

authors： Sampath Kumar HM,Herrmann L,Tsogoeva SB

更新日期：2020-12-01 00:00:00

abstract：:In the present study we report the synthesis of halogen-substituted phenanthrene β-diketo acids as new HIV-1 integrase inhibitors. The target phenanthrenes were obtained using both standard thermal- and microwave-assisted synthesis. 4-(6-Chlorophenanthren-2-yl)-2,4-dioxobutanoic acid (18) was the most active compound ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Sharma H,Sanchez TW,Neamati N,Detorio M,Schinazi RF,Cheng X,Buolamwini JK

更新日期：2013-11-15 00:00:00

abstract：:Three novel steroidal antiestrogen-geldanamycin conjugates were prepared using a convergent strategy. The antiestrogenic component utilized the 11β-(4-functionalized-oxyphenyl) estradiol scaffold, while the geldanamycin component was derived by replacement of the 17-methoxy group with an appropriately functionalized a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Adam Hendricks J,Hanson RN,Amolins M,Mihelcic JM,Blagg BS

更新日期：2013-06-15 00:00:00

abstract：:Chimeric oligonucleotides comprised of alternating residues of 2'-deoxy-2'-fluoro-D-arabinonucleic acid (2'F-ANA) and DNA were synthesized and evaluated for an important antisense property-the ability to elicit ribonuclease H (RNase H) degradation of complementary RNA. Experiments used both human RNase HII and Escheri...

journal_title：Bioorganic & medicinal chemistry letters

authors： Min KL,Viazovkina E,Galarneau A,Parniak MA,Damha MJ

更新日期：2002-09-16 00:00:00

abstract：:We synthesized DL-shikonin, shikonin, alkanin, and their cyclo-derivatives and acyl-derivatives. These compounds have low cytotoxicity, as well as inhibitory activity against the telomerase enzyme, except cyclo-derivatives. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lu Q,Liu W,Ding J,Cai J,Duan W

更新日期：2002-05-20 00:00:00

abstract：:Compound 2 was previously identified as a potent inhibitor of factor XIa lacking oral bioavailability. A structure-based approach was used to design analogs of 2 with novel P1 moieties with good selectivity profiles and oral bioavailability. Further optimization of the P1 group led to the identification of a 4-chlorop...

journal_title：Bioorganic & medicinal chemistry letters

authors： Pinto DJ,Smallheer JM,Corte JR,Austin EJ,Wang C,Fang T,Smith LM 2nd,Rossi KA,Rendina AR,Bozarth JM,Zhang G,Wei A,Ramamurthy V,Sheriff S,Myers JE Jr,Morin PE,Luettgen JM,Seiffert DA,Quan ML,Wexler RR

更新日期：2015-04-01 00:00:00

abstract：:The synthesis and SAR of a series of 6-(4-(substituted)phenyl)-2-aminopyridines as inhibitors of nitric oxide synthase are described. Compound 3a from this series shows potent and selective inhibition of the human nNOS isoform, with pharmacokinetics sufficient to provide in vivo inhibition of nNOS activity. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lowe JA 3rd,Qian W,Volkmann RA,Heck S,Nowakowski J,Nelson R,Nolan C,Liston D,Ward K,Zorn S,Johnson C,Vanase M,Faraci WS,Verdries KA,Baxter J,Doran S,Sanders M,Ashton M,Whittle P,Stefaniak M

更新日期：1999-09-06 00:00:00

abstract：:Modulating the structural dynamics of biomembranes by inducing bilayer curvature and lipid packing defects has been highlighted as a practical tool to modify membrane-dependent cellular processes. Previously, we have reported on an amphipathic helical peptide derived from the N-terminal segment (residues 1-18, EpN18) ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hsu WY,Masuda T,Afonin S,Sakai T,Arafiles JVV,Kawano K,Hirose H,Imanishi M,Ulrich AS,Futaki S

更新日期：2020-06-15 00:00:00

abstract：:A series of benzoxazole/benzothiazole-2,3-dihydrobenzo[b][1,4]dioxine derivatives (5a-5d and 8a-8j) was synthesized. Compounds were evaluated for binding affinities at the 5-HT1A and 5-HT2A receptors. Antidepressant activities of the compounds were screened using the forced swimming test (FST) and the tail suspension ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wang S,Chen Y,Zhao S,Xu X,Liu X,Liu BF,Zhang G

更新日期：2014-04-01 00:00:00

abstract：:In the search of new antihyperglycemic agents and following rational approach of drug designing here new 2-hydrazolyl-4-thiazolidinone-5-carboxylic acids (4a-g) with pyrazolyl pharmacophore have been synthesized via thia Michael addition reaction of 1-((3-(4-substituted phenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)thios...

journal_title：Bioorganic & medicinal chemistry letters

authors： Bhosle MR,Mali JR,Pal S,Srivastava AK,Mane RA

更新日期：2014-06-15 00:00:00

abstract：:A series of N,1,3-triphenyl-1H-pyrazole-4-carboxamide derivatives have been designed, synthesized and evaluated for their potential antiproliferation activity and Aurora-A kinase inhibitory activity. Among all the compounds, compound 10e possessed the most potent biological activity against HCT116 and MCF-7 cell lines...

journal_title：Bioorganic & medicinal chemistry letters

authors： Li X,Lu X,Xing M,Yang XH,Zhao TT,Gong HB,Zhu HL

更新日期：2012-06-01 00:00:00

abstract：:Prodrugs bioreductively activated to bleomycin analogues are reported. The production of hydroxyl radicals in the presence of FE(II) and dioxygen by both the prodrugs and the activated products are determined and their in vitro cytotoxicity measured. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Highfield JA,Mehta LK,Parrick J,Candeias LP,Wardman P

更新日期：1998-09-22 00:00:00

abstract：:A series of SYK inhibitors based on the phenylamino pyrimidine thiazole lead 4 were prepared and evaluated for biological activity. Lead optimization provided compounds with nanomolar K(i)'s against SYK and potent inhibition in mast cell degranulation assays. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Farmer LJ,Bemis G,Britt SD,Cochran J,Connors M,Harrington EM,Hoock T,Markland W,Nanthakumar S,Taslimi P,Ter Haar E,Wang J,Zhaveri D,Salituro FG

更新日期：2008-12-01 00:00:00

abstract：:Starting from thienobenzopyran HTS hit 1, co-crystallization, molecular modeling and metabolic analysis were used to design potent and metabolically stable inhibitors of PI3-kinase. Compound 15 demonstrated PI3K pathway suppression in a mouse MCF7 xenograft model. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Staben ST,Siu M,Goldsmith R,Olivero AG,Do S,Burdick DJ,Heffron TP,Dotson J,Sutherlin DP,Zhu BY,Tsui V,Le H,Lee L,Lesnick J,Lewis C,Murray JM,Nonomiya J,Pang J,Prior WW,Salphati L,Rouge L,Sampath D,Sideris S,

更新日期：2011-07-01 00:00:00

abstract：:The structural modification of the benzylic ether region of oxime 1 has resulted in the identification of several novel aryl amides as selective or dual NK(1)/NK(2) antagonists. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shih NY,Albanese M,Anthes JC,Carruthers NI,Grice CA,Lin L,Mangiaracina P,Reichard GA,Schwerdt J,Seidl V,Wong SC,Piwinski JJ

更新日期：2002-01-21 00:00:00

abstract：:Polymyxin B (1) monohydrochloride was converted to the tetra-BOC derivatives 1b and 1c by reaction with di-tert-butyl dicarbonate. The structures of these protected intermediates were established utilizing a degradative sequence that afforded 3 and 5. A method for the deprotection 2,4-dinitrophenylamines to the free a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Weinstein J,Afonso A,Moss E Jr,Miller GH

更新日期：1998-12-01 00:00:00

abstract：:In this work we present the synthesis, aqueous solubility and stability, hydrolysis by alkaline phosphatase, and in vivo fasciolicidal activity in sheep of a highly water soluble phosphate salt prodrug of triclabendazole (MFR-5). The aqueous solubility of MFR-5 at pH 7 was 88,000-fold that of triclabendazole. MFR-5 sh...

journal_title：Bioorganic & medicinal chemistry letters

authors： Flores-Ramos M,Ibarra-Velarde F,Jung-Cook H,Hernández-Campos A,Vera-Montenegro Y,Castillo R

更新日期：2017-02-01 00:00:00

abstract：:A series of acetylenic chalcones were evaluated for antimalarial and antitubercular activity. The antimalarial data for this series suggests that growth inhibition of the W2 strain of Plasmodium falciparum can be imparted by the introduction of a methoxy group ortho to the acetylenic group. Most compounds were more ac...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hans RH,Guantai EM,Lategan C,Smith PJ,Wan B,Franzblau SG,Gut J,Rosenthal PJ,Chibale K

更新日期：2010-02-01 00:00:00

abstract：:Dysregulation of cell signalling processes caused by an enhanced activity of protein kinases mainly contributes to cancer progression. Protein kinase inhibitors have been established as promising drugs that inhibit such overactive protein kinases in cancer cells. The formation of metastases, which makes a therapy diff...

journal_title：Bioorganic & medicinal chemistry letters

authors： Mahmoud KA,Krug M,Wersig T,Slynko I,Schächtele C,Totzke F,Sippl W,Hilgeroth A

更新日期：2014-04-15 00:00:00

abstract：:Imidazolidine and 1,4-diazepane analogs of N-(2-benzofuranyl)methyl-N'-(4-alkoxybenzyl)piperazines were prepared to explore the effect of ring contraction and expansion on σ receptor affinity and subtype selectivity within a series of cyclic diamines. In vitro receptor binding assays revealed that all cyclic vicinal d...

journal_title：Bioorganic & medicinal chemistry letters

authors： Moussa IA,Banister SD,Manoli M,Doddareddy MR,Cui J,Mach RH,Kassiou M

更新日期：2012-09-01 00:00:00

abstract：:Exposure of the phenol, (5-bromo-2-hydroxyphenyl)(2,4,5-trimethoxyphenyl)methanone 18 to ceric ammonium nitrate (CAN) resulted in the formation of 7-bromo-3,4a-dimethoxy-2H-xanthene-2,9(4aH)-dione 19 and 5-bromo-2',5'-dimethoxy-3H-spiro[benzofuran-2,1'-cyclohexa[2,5]diene]-3,4'-dione 20. The brominated spirobenzofuran...

journal_title：Bioorganic & medicinal chemistry letters

authors： Omolo JJ,Johnson MM,van Vuuren SF,de Koning CB

更新日期：2011-12-01 00:00:00

abstract：:Thieno analogues of the potent and selective furo-pyrimidine anti-VZV nucleoside family bearing a p-alkylphenyl side chain have been synthesised and tested for their antiviral activity against Varicella-Zoster virus (VZV). While the alkyl chain analogues were shown to retain full antiviral activity against VZV, these ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Angell A,McGuigan C,Garcia Sevillano L,Snoeck R,Andrei G,De Clercq E,Balzarini J

更新日期：2004-05-17 00:00:00

abstract：:A series of 5-[(3,5-bis(trifluoromethyl)phenyl)methoxy]-3-(3,4-dichlorophenyl)-4(Z)- (methoxyimino)pentyl-1-piperazines was prepared and their affinity for the NK1 and NK2 receptors investigated. Compounds 7f, 10o, 10r, and 10s were found to be our most potent inhibitors. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ting PC,Lee JF,Anthes JC,Shih NY,Piwinski JJ

更新日期：2000-10-16 00:00:00

abstract：:Nucleoside transporter inhibitors have potential therapeutic applications as anticancer, antiviral, cardioprotective, and neuroprotective agents. We have synthesized and flow cytometrically evaluated the binding affinity of a series of novel halogenated nitrobenzylthioinosine analogs at the human es nucleoside transpo...

journal_title：Bioorganic & medicinal chemistry letters

authors： Gupte A,Buolamwini JK

更新日期：2004-05-03 00:00:00