The search for novel TRPV1-antagonists: from carboxamides to benzimidazoles and indazolones.

abstract：:A series of 9-aminoalkanamido-1-azabenzanthrones derviatives (3a-i Ar-NHCO(CH(2))(n)NR(1)R(2)) and their quaternary methiodide salts (4a-g Ar-NHCO(CH(2))(n)N(+)(CH(3))R(1)R(2)I(-)) were designed and synthesized as acetylcholinesterase (AChE) or butyrylcholinesterase (BuChE) inhibitors. The synthetic compounds exhibite...

journal_title：Bioorganic & medicinal chemistry letters

authors： Tang H,Ning FX,Wei YB,Huang SL,Huang ZS,Chan AS,Gu LQ

更新日期：2007-07-01 00:00:00

abstract：:A series of alpha,beta-unsaturated-gamma-lactone-free nitrogen-containing heterocyclic analogues of solamin, a natural mono-THF acetogenin, have been synthesized and their cytotoxicity was investigated against 39 tumor cell lines. One of them, 1-methylpyrazol-5-yl derivative, showed selective increase of cytotoxicity ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kojima N,Fushimi T,Maezaki N,Tanaka T,Yamori T

更新日期：2008-03-01 00:00:00

abstract：:A new pyrrolidinone diterpenoid, excisusin F (1), was isolated from the aerial parts of Isodon excisus (Lamiaceae), together with four known compounds, and their structures were determined mainly by NMR (1D and 2D) and mass spectrometry. Excisusin F (1) and inflexarabdonin E (3) showed potent inhibitory effects of LPS...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hong SS,Lee SA,Kim N,Hwang JS,Han XH,Lee MK,Jung JK,Hong JT,Kim Y,Lee D,Hwang BY

更新日期：2011-02-15 00:00:00

abstract：:A series of 1,7-diaminoisoquinolinamines, that are expected to mediate antimalarial activity by the same mechanism employed by the chalcones, were produced. Six 7-benzylamino-1-isoquinolinamines were found to be submicromolar inhibitors in vitro of drug-resistant Plasmodium falciparum, with the best possessing activit...

journal_title：Bioorganic & medicinal chemistry letters

authors： Gutteridge CE,Hoffman MM,Bhattacharjee AK,Milhous WK,Gerena L

更新日期：2011-01-15 00:00:00

abstract：:The title compound (4A) was synthesized and tested as a mechanism-based inactivator of the sterol methyl transferase (SMT) enzyme from Prototheca wickerhamii. Using cycloartenol as substrate, 4A was found to exhibit time-dependent inactivation kinetics, generating a Ki value of 30 microM and Kinact value of 0.30 min-1...

journal_title：Bioorganic & medicinal chemistry letters

authors： Nes WD,He L,Mangla AT

更新日期：1998-12-15 00:00:00

abstract：:Compound DNSTT-Cu2+, a novel chelate of Cu2+ with DOTA conjugated to a fluorescent dansyl fragment, is developed for imaging cell apoptosis. Apoptotic U-87MG cells could be selectively visualized by the fluorescence of DNSTT-Cu2+ from cytoplasm of cells, confirmed by the fluorescence of apoptosis cells co-labeled with...

journal_title：Bioorganic & medicinal chemistry letters

authors： Han J,Wang X,Yu M

更新日期：2016-11-15 00:00:00

abstract：:In the course of a study of 6-N-amino-substituted analogues of NB-506 (1), a more potent anticancer drug, J-109,404 (2), in which the formyl group of NB-506 was replaced with a 1,3-dihydroxypropane group, was reported. A study of further modification in the positions of two hydroxyl groups at the indole rings of 2 res...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ohkubo M,Nishimura T,Honma T,Nishimura I,Ito S,Yoshinari T,Suda HA,Morishima H,Nishimura S

更新日期：1999-12-06 00:00:00

abstract：:Atrial fibrillation (AF) is a major cause of stroke, heart failure, sudden death and cardiovascular morbidity. The Kv1.5 potassium channel conducts the IKur current and has been demonstrated to be predominantly expressed in atrial versus ventricular tissue. Blockade of Kv1.5 has been proven to be an effective approach...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kajanus J,Antonsson T,Carlsson L,Jurva U,Pettersen A,Sundell J,Inghardt T

更新日期：2019-05-15 00:00:00

abstract：:A series of 4-substituted (benzo[b]thiophene-2-carbonyl)guanidines was synthesized and evaluated for the NHE-1 inhibitory activity and cardioprotective efficacy both in vitro and in vivo. Several analogs exhibited a strong inhibition on NHE-1, and which was generally well correlated with their cardioprotective efficac...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lee S,Lee H,Yi KY,Lee BH,Yoo SE,Lee K,Cho NS

更新日期：2005-06-15 00:00:00

abstract：:SAR studies for the exploration a novel class of anti-human immunodeficiency virus type 1 (HIV-1) agents based on the hematoxylin structure (1) are described. The systematic deoxygenations of 1 including asymmetric synthesis were conducted to obtain a compound showing high potencies for inhibiting the nuclear import a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ishii H,Koyama H,Hagiwara K,Miura T,Xue G,Hashimoto Y,Kitahara G,Aida Y,Suzuki M

更新日期：2012-02-01 00:00:00

abstract：:Retinoid X receptor (RXR) and Histone deacetylase (HDAC) are considered important targets for anti-cancer therapy due to their crucial roles in genetic or epigenetic regulations of cancer development and progression. Here, we have designed and synthesized a novel compound which targets both RXR and HADC. This dual-tar...

journal_title：Bioorganic & medicinal chemistry letters

authors： Chen GL,Wang LH,Wang J,Chen K,Zhao M,Sun ZZ,Wang S,Zheng HL,Yang JY,Wu CF

更新日期：2013-07-01 00:00:00

abstract：:The optimization of a series of 4-(dimethylamino)quinazoline antagonists of the melanin-concentrating hormone receptor 1 (MCH-R1) is described. The combination of the elaboration of both the linker portion and the terminal phenyl ring provided N-(cis-4-{[4-(dimethylamino)quinazolin-2-yl]amino}cyclohexyl)-3,4-difluorob...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kanuma K,Omodera K,Nishiguchi M,Funakoshi T,Chaki S,Semple G,Tran TA,Kramer B,Hsu D,Casper M,Thomsen B,Sekiguchi Y

更新日期：2005-09-01 00:00:00

abstract：:A series of benzoxazole compounds containing oxamic acid were synthesized and screened for the PTP1B inhibition. Compound 31d showed best biochemical potency (Ki) of 6.7 μM. Structure-activity relationship were explained with the help of molecular modeling approach. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Chandrasekharappa AP,Badiger SE,Dubey PK,Panigrahi SK,Manukonda SR

更新日期：2013-05-01 00:00:00

abstract：:A novel class of arylthiourea HCV inhibitors bearing various functionalities, such as cyclic urea, cyclic thiourea, urea, and thiourea, on the alkyl linker were designed and synthesized. Herein we report the synthesis and structure-activity relationships (SARs) of this novel class of arylthiourea derivatives that show...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kang IJ,Wang LW,Hsu SJ,Lee CC,Lee YC,Wu YS,Yueh A,Wang JC,Hsu TA,Chao YS,Chern JH

更新日期：2009-11-01 00:00:00

abstract：:We have developed a novel series of pyrrolidine derived BACE-1 inhibitors. The potency of the weak initial lead structure was enhanced using library-based SAR methods. The series was then further advanced by rational design while maintaining a minimal ligand binding efficiency threshold. Ultimately, the co-crystal str...

journal_title：Bioorganic & medicinal chemistry letters

authors： Stachel SJ,Steele TG,Petrocchi A,Haugabook SJ,McGaughey G,Katharine Holloway M,Allison T,Munshi S,Zuck P,Colussi D,Tugasheva K,Wolfe A,Graham SL,Vacca JP

更新日期：2012-01-01 00:00:00

abstract：:Structure-based design and synthesis of the 3,4'-bispyridinylethylene series led to the discovery of 3-isoquinolinylpyridine 13a as a potent PKB/Akt inhibitor with an IC(50) of 1.3nM against Akt1. Compound 13a shows excellent selectivity against distinct families of kinases such as tyrosine kinases and CAMK, and displ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Li Q,Woods KW,Thomas S,Zhu GD,Packard G,Fisher J,Li T,Gong J,Dinges J,Song X,Abrams J,Luo Y,Johnson EF,Shi Y,Liu X,Klinghofer V,Des Jong R,Oltersdorf T,Stoll VS,Jakob CG,Rosenberg SH,Giranda VL

更新日期：2006-04-01 00:00:00

abstract：:Primaquine (PQ) is the only commercially available drug that clears dormant liver stages of malaria and blocks transmission to mosquito vectors. Although an old drug, much remains to be known about the mechanism(s) of action. Herein we develop a fluorescent tagged PQ to discover cellular localization in the human mala...

journal_title：Bioorganic & medicinal chemistry letters

authors： McQueen A,Blake LD,Azhari A,Kemp MT,McGaha TW Jr,Namelikonda N,Larsen RW,Manetsch R,Kyle DE

更新日期：2017-10-15 00:00:00

abstract：:Prostate cancer is the most frequently diagnosed cancer and is one of the leading causes of male cancer death in the world. Recently, in the course of our screening for a novel anticancer compound, we synthesized carbocyclic analogs of pyrrolo[2,3-d]pyrimidine nucleoside; compounds 5, and 6. In the current study, we r...

journal_title：Bioorganic & medicinal chemistry letters

authors： Suh H,Choi KW,Lee J,Ryou C,Rhee H,Lee CH

更新日期：2016-02-15 00:00:00

abstract：:We herein report a group of allosteric inhibitors of integrin alpha(2)beta(1) based on an arylamide scaffold. Compound 4 showed an IC(50) of 4.80 microM in disrupting integrin I-domain/collagen binding in an ELISA. These arylamide compounds are able to block collagen binding to integrin alpha(2)beta(1) on the platelet...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yin H,Gerlach LO,Miller MW,Moore DT,Liu D,Vilaire G,Bennett JS,DeGrado WF

更新日期：2006-07-01 00:00:00

abstract：:We report the synthesis and biological activity of a series of 2-cyano-4-fluoro-1-thiovalylpyrrolidine inhibitors of DPP-IV. Within this series, compound 19 provided a potent, selective, and orally active DPP-IV inhibitor which demonstrated a very long duration of action in both rat and dog. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Haffner CD,McDougald DL,Reister SM,Thompson BD,Conlee C,Fang J,Bass J,Lenhard JM,Croom D,Secosky-Chang MB,Tomaszek T,McConn D,Wells-Knecht K,Johnson PR

更新日期：2005-12-01 00:00:00

abstract：:Oxidation of 4-methylcatechol previously exposed to aqueous calcium chloride was shown by ion chromatography to be associated with release of calcium ions. The catechol was oxidised to the corresponding orthoquinone by the use of tyrosinase from Agaricus bisporus. The oxidative release of calcium from the catechol is ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Riley PA,Stratford MR

更新日期：2015-04-01 00:00:00

abstract：:A series of N-acyl-N-hydroxy-beta-Phe were designed, synthesized, and shown to have potent inhibitory activity for carboxypeptidase A (CPA). They are the first examples of CPA inhibitors having a hydroxamate functionality. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kim DH,Jin Y

更新日期：1999-03-08 00:00:00

abstract：:Cytotoxicity and inhibition on human DNA topoisomerase I (TOP1) and II (TOP2) of 74 plant-originated triterpenoids and triterpenoid glycosides were investigated. The cytotoxic compounds are primarily polyhydroxylated oleananes (GI(50) of A549: 1.0-10.19 microM). Sixteen cytotoxic aesculiosides isolated from Aesculus p...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wang P,Ownby S,Zhang Z,Yuan W,Li S

更新日期：2010-05-01 00:00:00

abstract：:The Golden Triangle is a visualization tool developed from in vitro permeability, in vitro clearance and computational data designed to aid medicinal chemists in achieving metabolically stable, permeable and potent drug candidates. Classifying compounds as permeable and stable and plotting molecular weight (MW) versus...

journal_title：Bioorganic & medicinal chemistry letters

authors： Johnson TW,Dress KR,Edwards M

更新日期：2009-10-01 00:00:00

abstract：:Two series (4 and 5) of diarylpyridine derivatives were designed, synthesized, and evaluated for anti-HIV-1 activity. The most promising compound, 5e, inhibited HIV-1 IIIB, NL4-3, and RTMDR1 with low nanomolar EC50 values and selectivity indexes of >10,000. The results of this study indicate that diarylpyridine can be...

journal_title：Bioorganic & medicinal chemistry letters

authors： Tian X,Qin B,Lu H,Lai W,Jiang S,Lee KH,Chen CH,Xie L

更新日期：2009-09-15 00:00:00

abstract：:Based on the structural features of Indoprofen and PIB, a series of isoindol-1,3-diones 1a-k and isoindol-1-ones 2a-l were designed and synthesized. These 23 compounds were evaluated by competitive binding assay against aggregated Abeta42 fibrils using [(125)I]TZDM. All the isoindolone derivatives showed very good bin...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lee HJ,Lim SJ,Oh SJ,Moon DH,Kim DJ,Tae J,Yoo KH

更新日期：2008-03-01 00:00:00

abstract：:A series of thiazole bearing thiazolidin-4-one was discovered via high-throughput screening as non-competitive inhibitors of ADAMTS-5. Compound 31 appeared to give the best ADAMTS-5 inhibition and good selectivity over other metalloproteases. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Atobe M,Maekawara N,Ishiguro N,Sogame S,Suenaga Y,Kawanishi M,Suzuki H,Jinno N,Tanaka E,Miyoshi S

更新日期：2013-04-01 00:00:00

abstract：:A novel class of phenylacetic acid regioisomers possessing a N-difluoromethyl-1,2-dihydropyrid-2-one pharmacophore attached to its C-2, C-3 or C-4 position was designed for evaluation as anti-inflammatory (AI) agents. A number of compounds exhibited a combination of potent in vitro cyclooxygenase-2 (COX-2) and 5-lipox...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yu G,Chowdhury MA,Abdellatif KR,Dong Y,Praveen Rao PN,Das D,Velázquez CA,Suresh MR,Knaus EE

更新日期：2010-02-01 00:00:00

abstract：:A series of MT-II related cyclic peptides, based on potent but non-selective hMC4R agonist (Penta-c[Asp-His(6)-DPhe(7)-Arg(8)-Trp(9)-Lys]-NH(2)) was prepared in which His(6) residue was systematically substituted. Two of the most interesting peptides identified in this study are Penta-c[Asp-5-ClAtc-DPhe-Arg-Trp-Lys]-N...

journal_title：Bioorganic & medicinal chemistry letters

authors： Cheung AW,Danho W,Swistok J,Qi L,Kurylko G,Rowan K,Yeon M,Franco L,Chu XJ,Chen L,Yagaloff K

更新日期：2003-04-07 00:00:00

abstract：:Structure-based design, synthesis, and biological evaluation of a series of peptidomimetic beta-secretase inhibitors incorporating hydroxyethylamine isosteres are described. We have identified inhibitor 24 which has shown exceedingly potent activity in memapsin 2 enzyme inhibitory (K(i) 1.8 nM) and cellular (IC(50)=1 ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ghosh AK,Kumaragurubaran N,Hong L,Kulkarni S,Xu X,Miller HB,Reddy DS,Weerasena V,Turner R,Chang W,Koelsch G,Tang J

更新日期：2008-02-01 00:00:00