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 less neuroprotective than 7-O-cinnamoylsilibinin in a murine hippocampal cell line (HT-22) and we conclude that the dehydrosilibinin derivatives are not the actual carriers of neuroprotective properties, at least in the assay applied. Solubility of the test compounds was determined in shake-flask experiments and the ester's solubility was greatly improved by introduction of a hemisuccinate at the 23-position of silibinin. Time-stability curves in assay media were recorded. The hemisuccinate ester did not act as a prodrug to release 7-O-cinnamoylsilibinin but is the second ester bond to be cleaved. Nevertheless, it still exhibits significant neuroprotection. Therefore, its greatly increased solubility might effectively counterbalance lower in vitro neuroprotection.
journal_name
Arch Pharm (Weinheim)journal_title
Archiv der Pharmazieauthors
Schramm S,Gunesch S,Lang F,Saedtler M,Meinel L,Högger P,Decker Mdoi
10.1002/ardp.201800206subject
Has Abstractpub_date
2018-11-01 00:00:00pages
e1800206issue
11eissn
0365-6233issn
1521-4184journal_volume
351pub_type
杂志文章abstract::Novel C-5 substituted 6,2'-anhydrouridines 5a-e are synthesized from the hitherto unknown monosubstituted ribofuranosylbarbituric acid derivatives 4a-e. These molecules are high-anti-fixed by a 6,2'-linkage and were assumed to show antiviral and antineoplastic effects. In cell culture test systems, however, none of th...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.19893220213
更新日期:1989-02-01 00:00:00
abstract::A set of 40 derivatives of 3-hydroxypicolinic acid and 2-sulfanylbenzoic acid, isosteric to salicylanilides was synthesized. The compounds were evaluated for in vitro activity against Mycobacterium tuberculosis, Mycobacterium kansasii and Mycobacterium avium, Candida albicans, Candida tropicalis, Candida krusei, Candi...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200300725
更新日期:2003-08-01 00:00:00
abstract::Chemical modification of cinnoxacin was studied with the aim of improving its antibacterial activity and spectrum. A series of 4-imino-1, 4-dihydrocinnoline-3-carboxylic acid derivatives was synthesized and their in vitro antibacterial activity was evaluated. These derivatives were designed as isosteric analogues of f...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200390000
更新日期:2003-03-01 00:00:00
abstract::A number of 7-piperazinylquinolones carrying a functionalized 2-(furan-3-yl)ethyl moiety attached to the piperazine ring have been synthesized and evaluated as antibacterial agents against a panel of Gram-positive and Gram-negative bacteria. Most of the synthesized compounds exhibited significant antibacterial activit...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200600169
更新日期:2007-01-01 00:00:00
abstract::The synthesis and biological evaluation of oximes of 2-aryl-6-methoxy-3,4-dihydronaphthalene (7a, 7b, 14a, 14b) as nonsteroidal inhibitors of 17 alpha-hydroxylase-C17,20-lyase (P450 17, CYP 17) is described. The target compounds were synthesized and identified by 1H NMR and MS. The preparation of the key intermediates...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/(sici)1521-4184(199801)331:1<36::aid-ardp3
更新日期:1998-01-01 00:00:00
abstract::The synthesis of two series of derivatives containing the quinazolinone-4 moiety is described. 3-Amino-2(1H)-thioxo-4(3H)-quinazolinone (1) was subjected to reactions with halogenoketones and halogenoaldehydes, leading to the production of the corresponding ketones, aldehydes, Schiff bases, and 6-oxo-1,4,5-thiadiazin[...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.19973301208
更新日期:1997-12-01 00:00:00
abstract::Several 2-(5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)-1H-benzimidazole-5-carboxamidine analogues were synthesized for their antibacterial and antifungal activities against S. aureus, Methicillin-resistant S. aureus (MRSA), C. albicans, and C. krusei. MIC values of the targeted compounds 43-58 are comparabl...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200500168
更新日期:2006-02-01 00:00:00
abstract::A series of homochiral 7-substituted 1-aminoindans was prepared by means of asymmetric reductive amination from racemic 7-substituted 1-indanones via E-imines and E-imine/enamine mixtures, respectively, and subjected to 5-hydroxytryptamine (5-HT) receptor subtype binding studies. The ee's of the title compounds were d...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/(sici)1521-4184(199802)331:2<59::aid-ardp5
更新日期:1998-02-01 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
pub_type: 杂志文章,评审
doi:10.1002/ardp.200400991
更新日期:2005-06-01 00:00:00
abstract::The aim of our study was to investigate structure activity relationship following the replacement of the 6-phenyl substituent at the 6,7-diaryl-2,3-dihydropyrrolizine template by various heteroaromatic residues. In this context we developed a new, efficient, and highly sensitive test method for the screening of dual c...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.19973300908
更新日期:1997-10-01 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
pub_type: 杂志文章
doi:10.1002/ardp.19923250904
更新日期:1992-09-01 00:00:00
abstract::A new series of 1,2,4-triazolo[4,3-c]quinazoline derivatives was designed and synthesized as Topo II inhibitors and DNA intercalators. The cytotoxic effect of the new members was evaluated in vitro against a group of cancer cell lines including HCT-116, HepG-2, and MCF-7. Compounds 14c , 14d , 14e , 14e , 15b , 18b , ...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.202000237
更新日期:2020-11-23 00:00:00
abstract::The marine fatty acid (+/-)-2-methoxytetradecanoic acid was synthesized in two steps (71% overall yield) starting from commercially available methyl-2-hydroxy-tetradecanoate. The title compound was antifungal against Candida albicans (ATCC 14053) in RPMI medium and Aspergillus niger (ATCC 16404) and Cryptococcus neofo...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200300824
更新日期:2004-03-01 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
pub_type: 杂志文章
doi:10.1002/(sici)1521-4184(19989)331:9<265::aid-ardp2
更新日期:1998-09-01 00:00:00
abstract::The synthesis and odour properties of the new santalol analogue, methyl-beta-santalol, are described. The additional methyl group adjacent to the hydroxyl function of the standard molecule, beta-santalol, deprives the new compound of the sandalwood note. The synthesis and the odour evaluation of this compound supports...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.19973300407
更新日期:1997-04-01 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
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::New resveratrol (trans-3,4',5-trihydroxystilbene) analogs were synthesized and screened for their in vitro cancer chemopreventive potential using various bioassays relevant for the prevention of carcinogenesis in humans: two assays to detect modulators of carcinogen metabolism (Cyp1A inhibition; determination of NAD(P...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.201600022
更新日期:2016-06-01 00:00:00
abstract::A new method for the synthesis of ODN-luciferase conjugate was investigated as a signal-amplifying sensor of the target nucleic acids. The conjugation of the luciferase was successfully achieved between the cysteine residue and the 2-amino-6-vinylpurine nucleoside of the ODN probe without significant inactivation of l...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200800031
更新日期:2008-09-01 00:00:00
abstract::Although a few experimental approaches to isolated limb perfusion (ILP) are described in the literature, none of these animal models mimics the clinical perfusion techniques adequately to improve the technique of ILP on the basis of valid preclinical data. Therefore, we developed an ILP setup in rats allowing online m...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200400917
更新日期:2004-12-01 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
pub_type: 杂志文章
doi:10.1002/(sici)1521-4184(199804)331:4<121::aid-ardp
更新日期:1998-04-01 00:00:00
abstract::A series of novel N(1)-[5-(4-substituted phenyl)-1,3,4-thiadiazol-2-yl]-N(4)-(4-substituted benzaldehyde)-semicarbazone 1-12, N(1)-[5-(4-substituted phenyl)-1,3,4-thiadiazol-2-yl]-N(4)-[1-(4-substituted phenyl)ethanone]-semicarbazone 13-16, and N(1)-[5-(4-substituted phenyl)-1,3,4-thiadiazol-2-yl]-N(4)-[1-(4-substitut...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200800213
更新日期:2009-08-01 00:00:00
abstract::The oncoprotein cytotoxic associated gene A (CagA) of Helicobacter pylori plays a pivotal role in the development of gastric cancer, so it has been an important target for anti-H. pylori drugs. Conventional drugs are currently being implemented against H. pylori. The inhibitory role of plant metabolites like curcumin ...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.201400438
更新日期:2015-08-01 00:00:00
abstract::A series of 5-amino-3-methylisoxazole-4-carboxylic acid amides has been prepared by condensation of 5-amino-3-methylisoxazole-4-carboxylic acid with ethyl chloroformate. The resulting mixed anhydride undergoes condensation with appropriate phenylamides to form the corresponding amides 6-16. The compounds obtained were...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/(sici)1521-4184(19995)332:5<158::aid-ardp1
更新日期:1999-05-01 00:00:00
abstract::New condensed derivatives of anpirtoline, in which the pyridine ring is replaced with quinoline, quinazoline, 7-chloroquinoline, and 7-chloroquinazoline nuclei, have been synthesized. Their receptor binding profiles (5-HT1A, 5-HT1B) and analgesic activity (hot plate, acetic acid induced writhing) have been studied. Th...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/1521-4184(200011)333:11<381::aid-ardp381>3
更新日期:2000-11-01 00:00:00
abstract::Synthesis and biological assays of a series of 2-phenylpteridine derivatives are described to compare their affinities to adenosine receptors with those of the corresponding adenines, purposely prepared, and 8-azaadenines previously described. This study demonstrates that the enlargement of the five-membered ring of t...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200600168
更新日期:2007-02-01 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
pub_type: 杂志文章,评审
doi:10.1002/ardp.202000025
更新日期:2020-08-01 00:00:00
abstract::Increases in the intracellular levels of glutathione (GSH) in cancer cells have been implicated in the development of acquired resistance to platinum antitumor agents. On the other hand, little information is available on the relationships between intracellular GSH levels in non-treated cancer cells and their response...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200400620
更新日期:2004-12-01 00:00:00
abstract::A range of 11 derivatives of flavone-8-acetic acid (FAA) in which the structure has been substantially altered in different ways have been prepared and their anti-tumour activity evaluated in vitro against a panel of human and murine tumour cell lines and in vivo against MAC 15A. The generally poor activity observed s...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/1521-4184(20006)333:6<181::aid-ardp181>3.0
更新日期:2000-06-01 00:00:00
abstract::Diverse biological activities have been found in compounds having a quinazolinone ring system. A large number of 4(3H)-quinazolinones, in particular those possessing 2-alkyl-3-aryl, 2,3-dialkyl, and 2-alkyl-3-amino substitution, have been evaluated for pharmacological activity. On the other hand, thiazolidone derivati...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.19913240613
更新日期:1991-06-01 00:00:00
abstract::A screening study was conducted to examine the effect of a series of synthesized pyrazoloquinoline derivatives on the growth of Leishmania donovani promastigotes. Sixteen compounds were tested, ten of which showed an inhibitory effect on the growth of promastigotes. Compound 1 demonstrated potent antileishmanial activ...
journal_title:Archiv der Pharmazie
pub_type: 杂志文章
doi:10.1002/ardp.200500147
更新日期:2005-10-01 00:00:00