Synthesis and potent antimicrobial activities of some novel retinoidal monocationic benzimidazoles.

abstract：:A series of hydroxy-substituted chalcone oxime derivatives were synthesized. These compounds were then evaluated for their inhibitory activities on tyrosinase and melanogenesis in murine B16F10 melanoma cells. The structures of the synthesized compounds were confirmed by (1) H NMR, (13) C NMR, FTIR, and HRMS. Two of t...

journal_title：Archiv der Pharmazie

authors： Radhakrishnan SK,Shimmon RG,Conn C,Baker AT

更新日期：2016-01-01 00:00:00

abstract：:Furfurylidenemalononitriles and thienylidenemalononitriles were treated with 1,3-cyclohexanediones to afford 2-amino-4-hetaryl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile derivatives. The molluscicidal activity of these compounds was investigated. ...

journal_title：Archiv der Pharmazie

authors： Abdelrazek FM,Metz P,Farrag EK

更新日期：2004-09-01 00:00:00

abstract：:The key step in the synthesis of the pharmacologically interesting 1-phenyltetrahydro-3-benzazepine skeleton is the Michael addition of (2-lithiophenyl)acetaldehyde acetals, which are generated in situ upon treatment of the bromo acetals 5a,b with n-butyllithium, to beta-nitrostyrene (6). The reductive ring closure of...

journal_title：Archiv der Pharmazie

authors： Wünsch B,Nerdinger S,Bauschke G,Höfner G

更新日期：1997-07-01 00:00:00

abstract：:We report in this work the synthesis, cytotoxicity, and antimicrobial activity of ([1,2,4]triazolo[1,5-c]quinazolin-2-ylthio)carboxylic acid amides 4-7 in connection with our previous research in the preparation of triazoloquinazoline derivatives. Due to simplicity, general availability of starting materials, and high...

journal_title：Archiv der Pharmazie

authors： Antipenko LN,Karpenko AV,Kovalenko SI,Katsev AM,Komarovska-Porokhnyavets EZ,Novikov VP

更新日期：2009-11-01 00:00:00

abstract：:The ongoing interest in very efficient systems for the imitation of cytochrome P-450-dependent monooxygenase reactions, consisting of metalloporphyrin and oxygen donor, prompted us to develop a method to compare the catalytic activity of soluble metalloporphyrins with those which have been immobilised on different sil...

journal_title：Archiv der Pharmazie

authors： Lübbe AN,Rickerts B,Duchstein HJ

更新日期：2006-12-01 00:00:00

abstract：:Cancer can invade or spread to almost all parts of the body. The increasing morbidity and high mortality of cancer create a great demand for the development of novel anticancer drugs. Coumarin derivatives are ubiquitous in nature and can readily interact with diverse enzymes and receptors in cancer cells via weak bond...

journal_title：Archiv der Pharmazie

authors： Song XF,Fan J,Liu L,Liu XF,Gao F

更新日期：2020-08-01 00:00:00

abstract：:The synthesis of tacrine-thiadiazolidinone hybrids is described. These compounds are designed as dual acetylcholinesterase inhibitors binding simultaneously to the peripheral and catalytic sites of the enzyme. All tested compounds exhibit significant AChE inhibitory activity. Competition assays using propidium as refe...

journal_title：Archiv der Pharmazie

authors： Dorronsoro I,Alonso D,Castro A,del Monte M,García-Palomero E,Martínez A

更新日期：2005-01-01 00:00:00

abstract：:Reaction of K2PtCl4 with the substituted 2-aminomethylpyridines 9, 14, and 22 affords the corresponding dichloroplatinum(II) complexes 3-5. Compounds 3 and 22 show remarkable relative binding affinities for the estrogen receptor. Towards the hormone-independent P388-tumor of the CD2F1-mouse the platinum(II) complexes ...

journal_title：Archiv der Pharmazie

authors： Brunner H,Nerl G,von Angerer E,Knebel N

更新日期：1991-10-01 00:00:00

abstract：:The synthesis and preliminary assays as hypocholesterolemic agents of five N-diphenylmethylpiperazines are described. The evaluations were carried out in hypercholesterolemic mice and two of these compounds were more effective than bezafibrate in the test employed. The di-p-chlorosubstituted compounds showed higher ac...

journal_title：Archiv der Pharmazie

authors： Alivert A,Canals F,Bonet JJ,Gómez-Parra V,Sánchez-Alonso F

更新日期：1991-09-01 00:00:00

abstract：:The diffusion of a series of non steroidal antiinflammatory drugs through a silicone rubber membrane has been studied from suspensions both of the free and beta-cyclodextrin complexes forms at different pH values of the medium. Higher diffusion rates of the complexed forms as compared with the free ones and a rate-lim...

journal_title：Archiv der Pharmazie

authors： Orienti I,Cavallari C,Zecchi V,Fini A

更新日期：1989-04-01 00:00:00

abstract：:Stress is implicated in the pathogenesis of numerous disorders such as cardiovascular diseases or neurodegeneration. The extensive overlap between diseases attributed to stress and oxidative damage is indicative of their potential relationship. We hereby study the influence of alpha-tocopherol (alpha-toc) on the devel...

journal_title：Archiv der Pharmazie

authors： Tsiakitzis K,Kourounakis AP,Tani E,Rekka EA,Kourounakis PN

更新日期：2005-07-01 00:00:00

abstract：:Rationally designed Mycobacterium tuberculosis (Mtb) inhibitors were synthesized under Buchwald conditions using Pd2 (dba)3 /xantphos and the compounds were investigated for their biological activity against the Mtb standard strain H37Rv and two other clinically isolated multidrug-resistant strains with different drug...

journal_title：Archiv der Pharmazie

authors： Gangarapu NR,Ranganatham A,Reddy EK,Yellappa S,Chandrasekhar KB

更新日期：2020-07-01 00:00:00

abstract：:New phosphoramide mustards (6-8) have been prepared from the antibiotics 2 and 3, and from 5. The mixture of cyclophosphamides could be separated by preparative layer and column chromatography. The assignments of configuration to the isomeric phosphoramidates was based on the magnetic anisotropy of the P = O bond. The...

journal_title：Archiv der Pharmazie

authors： Csorvási A,Kövér KE,Menyhárt MM,Sztaricskai F,Dobrynin YV,Nikolaeva TG

更新日期：1998-09-01 00:00:00

abstract：:Structural feature analysis of chlorogenic acid derivatives made up of varying lengths of alkyl groups as α-glucosidases inhibitors were performed by QSAR techniques. The statistically significant models derived from the study were validated by leave one out, Y-randomization and test set methods. The predictive capaci...

journal_title：Archiv der Pharmazie

authors： Narayana Moorthy NS,Ramos MJ,Fernandes PA

更新日期：2012-04-01 00:00:00

abstract：:2-Acetyl-(6-picolyl)-4N-substituted thiosemicarbazones and their copper(II) complexes were shown to be potent antineoplastic and cytotoxic agents against murine and human cultured cells. Numerous derivatives were as active against solid tumor growth as clinically useful agents. The agents inhibited L1210 DNA and RNA s...

journal_title：Archiv der Pharmazie

authors： Miller MC 3rd,Bastow KF,Stineman CN,Vance JR,Song SC,West DX,Hall IH

更新日期：1998-04-01 00:00:00

abstract：:Marine organisms play an important role in natural product-based drug research due to accumulation of structurally unique and bioactive metabolites. The exploration of marine-derived compounds may significantly extend the scientific knowledge of potential scaffolds for antibiotic drug discovery. Development of novel a...

journal_title：Archiv der Pharmazie

authors： Daletos G,Ancheeva E,Chaidir C,Kalscheuer R,Proksch P

更新日期：2016-10-01 00:00:00

abstract：:The chemical reactivity of cytotoxic 5-indolone derivatives is examined in order to get ideas about their behaviour in biological systems. Dienone-phenol-rearrangement preserving the indole ring system could not be achieved, aromatization of 1b gives the phenol derivative 3 alpha. In diluted NaOH ester hydrolysis occu...

journal_title：Archiv der Pharmazie

authors： Eger K,Frey M

更新日期：1992-09-01 00:00:00

abstract：:CXC chemokine receptor-3 (CXCR3) is a G-protein coupled receptor (GPCR) predominantly expressed on activated T lymphocytes that promote Th1 responses. Previously, we described the 3H-quinazolin-4-one containing VUF 5834 (decanoic acid {1-[3-(4-cyano-phenyl)-4-oxo-3,4-dihydro-quinazolin-2-yl]-ethyl}-(2-dimethylamino-et...

journal_title：Archiv der Pharmazie

authors： Storelli S,Verzijl D,Al-Badie J,Elders N,Bosch L,Timmerman H,Smit MJ,De Esch IJ,Leurs R

更新日期：2007-06-01 00:00:00

abstract：:Some 2-arylpyrazolo[1,5-c][1,3]benzoxazin-5-ones 1 and 5- oxopyrazolo[1,5-c][1,3]benzoxazin-2-carboxylates 2 were prepared and biologically evaluated for their binding at benzodiazepine receptor (BZR) in rat cortical membranes. Structure-activity relationship studies suggest that, although proton donor d and proton ac...

journal_title：Archiv der Pharmazie

authors： Varano F,Catarzi D,Colotta V,Cecchi L,Filacchioni G,Galli A,Costagli C

更新日期：1996-12-01 00:00:00

abstract：:Derivatives of the recently described potent neuroprotective 7-O-cinnamoylsilibinin ester were prepared: its hemisuccinate to improve water solubility and the dehydrosilibinin ester that was shown to form in assay media to investigate its role in overall neuroprotective effects. 7-O-Cinnamoyl-2,3-dehydrosilibinin is l...

journal_title：Archiv der Pharmazie

authors： Schramm S,Gunesch S,Lang F,Saedtler M,Meinel L,Högger P,Decker M

更新日期：2018-11-01 00:00:00

abstract：:Solid-state Nuclear Magnetic Resonance (NMR) provides a general method to study molecular structure and dynamics in a non-crystalline and insoluble environment. We discuss the latest methodological progress to construct 3D molecular structures from solid-state NMR data obtained under magic-angle-spinning conditions. A...

journal_title：Archiv der Pharmazie

authors： Luca S,Heise H,Lange A,Baldus M

更新日期：2005-06-01 00:00:00

abstract：:A general procedure for the preparation of 1,2,3-triazole analogs of nucleosides from diethyl 2-azidoethoxymethyl- and 2-azidoethoxyethylphosphonates was elaborated. The application of microwave irradiation shortened the reaction time to 10 min in comparison to ca. 48 h when 1,3-dipolar cycloadditions were performed u...

journal_title：Archiv der Pharmazie

authors： Głowacka IE,Balzarini J,Wróblewski AE

更新日期：2013-04-01 00:00:00

abstract：:In this study, the synthesis of a new series of 3,6-disubstituted-7H-1,2,4-triazolo[3,4-b][1,3,4]thiadiazine 1a-4c compounds derived from 4-amino-3-substituted-1,2,4-triazole-5-thiones 1-4 is described. All of the synthesized compounds were screened for their possible analgesic / anti-inflammatory, antioxidant activit...

journal_title：Archiv der Pharmazie

authors： Tozkoparan B,Aytaç SP,Aktay G

更新日期：2009-05-01 00:00:00

abstract：:The objective of this work was to develop a liver-specific antihepato carcinoma agent. A series of 5-fluorouracil / cholic acid conjugates (5-FU-cholic acid conjugates) were prepared and tested for their chemical characteristics and bio-distribution properties. The in-vitro stability trial showed 5-FU-cholic acid conj...

journal_title：Archiv der Pharmazie

authors： Qian S,Wu JB,Wu XC,Li J,Wu Y

更新日期：2009-09-01 00:00:00

abstract：:Some new N-[6-indazolyl]arylsulfonamides and N-[alkoxy-6-indazolyl]arylsulfonamides were prepared by the reduction of 2-alkyl-6-nitroindazoles with SnCl2 in different alcohols, followed by coupling the corresponding amine with arylsulfonyl chlorides in pyridine. The newly synthesized compounds were evaluated for their...

journal_title：Archiv der Pharmazie

authors： Abbassi N,Rakib el M,Chicha H,Bouissane L,Hannioui A,Aiello C,Gangemi R,Castagnola P,Rosano C,Viale M

更新日期：2014-06-01 00:00:00

abstract：:36 Novel heterocyclic chalcone derivatives were synthesized and tested for their anti-bacterial activity. Some compounds presented good anti-microbial activities against Gram-positive bacteria (including the multidrug-resistant clinical isolates). This class of compounds presented high potency against Streptococcus mu...

journal_title：Archiv der Pharmazie

authors： Zheng CJ,Jiang SM,Chen ZH,Ye BJ,Piao HR

更新日期：2011-10-01 00:00:00

abstract：:In this study, a number of 2,5-disubstituted 1,3,4-thiadiazoles were synthesized using an appropriate synthetic route, and their anticonvulsant activity was determined by the maximal electroshock seizure (MES) test and their neurotoxicity was evaluated by the rotarod test. Additionally, their hypnotic activity was tes...

journal_title：Archiv der Pharmazie

authors： Toolabi M,Khoramjouy M,Aghcheli A,Ayati A,Moghimi S,Firoozpour L,Shahhosseini S,Shojaei R,Asadipour A,Divsalar K,Faizi M,Foroumadi A

更新日期：2020-12-01 00:00:00

abstract：:A series of 3,4-bis-chalcone-N-arylpyrazoles 3a-k was prepared from diacetyl pyrazoles 2a-e. The reaction of 2d and 2e with hydrazine hydrate gave pyrazolo[3,4-d]pyridazine derivatives 4a-b. Furthermore, the reaction of 2a-e with thiosemicarbazide afforded pyrazolo[3,4-d]pyridazine thiocyanate salts 5a-e. The synthesi...

journal_title：Archiv der Pharmazie

authors： El-Sabbagh OI,Mostafa S,Abdel-Aziz HA,Ibrahim HS,Elaasser MM

更新日期：2013-09-01 00:00:00

abstract：:Nine novel acyl thioureas were synthesized. Their identities and purities were confirmed by LC-MS spectra; each structure was elucidated by elemental analysis, IR, 1 Н and 13 C NMR spectra. Applying an in vitro screening of their antifungal potential, three substances (3, 5, and 6) could be selected as showing high ac...

journal_title：Archiv der Pharmazie

authors： Antypenko L,Meyer F,Kholodniak O,Sadykova Z,Jirásková T,Troianova A,Buhaiova V,Cao S,Kovalenko S,Garbe LA,Steffens KG

更新日期：2019-02-01 00:00:00

abstract：:The reaction of ethyl 4-(benzofuran-2-yl)-2,4-dioxobutanoate 2 with two moles of hydrazine hydrate afforded 5-(benzofuran-2-yl)-1H-pyrazole-3-carbohydrazide 4a, while its reaction with equimolar amount of phenylhydrazine gave ester 3b which then converted to 5-(benzofuran-2-yl)-1-phenyl-1H-pyrazole-3-carbohydrazide 4b...

journal_title：Archiv der Pharmazie

authors： Abdel-Wahab BF,Abdel-Aziz HA,Ahmed EM

更新日期：2008-11-01 00:00:00