Abstract:
:We have investigated the possibility of preparing complexes of rhenium and technetium whose shape resembles that of ligands for steroid receptors. The general structure of N2S2 complexes of oxorhenium(V) and oxotechnetium(V) is such that they could replace the BC ring system of steroid, thereby generating a metal complex system with considerable size and shape similarity to a steroid. Such a metal-integrated steroid-shaped complex can be constructed as a heterodimer of two different amino thiols; complexes of rhenium and technetium with such heterodimeric bis-bidentate structure have not been systematically studied. In this investigation, we have shown that complexes of this nature form readily when appropriate metal precursors are combined with a mixture of amino thiols. In the systems we have studied, heterodimeric complex formation is preferred over homodimeric complex formation, and in one system where we were able to obtain an X-ray crystal structure, this oxorhenium heterodimer had the desired trans geometry. These rhenium and technetium-99m complexes are reasonably stable toward ligand exchange; they can be readily purified by chromatography under appropriate conditions, and the one technetium-99m complex studied in vivo shows some persistence in blood and gives good initial uptake in several tissues. The convenient and selective formation of such bis-bidentate heterodimeric complexes suggests that the development of metal-integrated complexes that resemble ligands for receptors may be possible.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Chi DY,O'Neil JP,Anderson CJ,Welch MJ,Katzenellenbogen JAdoi
10.1021/jm00033a010subject
Has Abstractpub_date
1994-04-01 00:00:00pages
928-37issue
7eissn
0022-2623issn
1520-4804journal_volume
37pub_type
杂志文章abstract::The 6-aminoglucosamine ring of the aminoglycoside antibiotic neomycin B (ring II) was conjugated to a 16-mer peptide nucleic acid (PNA) targeting HIV-1 TAR RNA. For this purpose, we prepared the aminoglucosamine monomer 15 and attached it to the protected PNA prior to its cleavage from the solid support. We found that...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm300253q
更新日期:2012-07-12 00:00:00
abstract::Cathepsin B (CTB) is a cysteine protease believed to be an important therapeutic target or biomarker for several diseases including aggressive cancer, arthritis, and parasitic infections. The development of probes capable of assessing CTB activity in cell lysates, living cells, and animal models of disease are needed ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm500544p
更新日期:2014-07-24 00:00:00
abstract::Pyrimidine biosynthesis presents an attractive drug target in malaria parasites due to the absence of a pyrimidine salvage pathway. A set of compounds designed to inhibit the Plasmodium falciparum pyrimidine biosynthetic enzyme dihydroorotate dehydrogenase (PfDHODH) was synthesized. PfDHODH-specific inhibitors with lo...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm060687j
更新日期:2007-01-25 00:00:00
abstract::Focal adhesion kinase (FAK) is a nonreceptor kinase that is overexpressed in many types of tumors. We developed a novel cancer-therapy approach, targeting the main autophosphorylation site of FAK, Y397, by computer modeling and screening of the National Cancer Institute (NCI) small molecule compounds database. More th...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm800483v
更新日期:2008-12-11 00:00:00
abstract::Antitumor activity in mice was observed for the oxime of the previously reported ethyl [6-amino-4-[(1-methyl-2-phenyl-2-oxoethyl)amino]-5-nitropyridin -2-yl] carbamate (8) and several related compounds. These compounds are precursors of the active ethyl pyrido[3,4-b]pyrazin-7-ylcarbamates (e.g., 4), which are potent a...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00098a014
更新日期:1992-10-02 00:00:00
abstract::2-(3',4',5'-Trimethoxybenzoyl)-3-amino-5-aryl/heteroaryl thiophene derivatives were synthesized and evaluated for antiproliferative activity, inhibition of tubulin polymerization, and cell cycle effects. SARs were elucidated with various substitutions on the aryl moiety 5-position of the thienyl ring. Substituents at ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm060804a
更新日期:2006-10-19 00:00:00
abstract::A number of fatty acyl derivatives of (-)-2',3'-dideoxy-3'-thiacytidine (lamivudine, 3TC, 1) were synthesized and evaluated for their anti-HIV activity. The monosubstituted 5'-O-fatty acyl derivatives of 3TC (EC(50) = 0.2-2.3 μM) were more potent than the corresponding monosubstituted N(4)-fatty acyl (EC(50) = 0.4-29....
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm300492q
更新日期:2012-05-24 00:00:00
abstract::Three ellipticine-estradiol conjugates were synthesized in an effort to target the cytotoxicity of ellipticine to estrogen-receptor positive cells. The three conjugates were prepared with linker chains extending from the 17 alpha position of the estradiol to N-2 (compound 3), N-6 (compound 4), and C-9 (compound 5) pos...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm9602930
更新日期:1996-08-16 00:00:00
abstract::Ligands from the naltrexamine series have consistently demonstrated agonist activity at kappa opioid receptors (KOR), with varying activity at the mu opioid receptor (MOR). Various 6 beta-cinnamoylamino derivatives were made with the aim of generating ligands with a KOR agonist/MOR partial agonist profile, as ligands ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm8015552
更新日期:2009-03-26 00:00:00
abstract::CC-chemokine receptor 5 (CCR5) is an attractive target for preventing the entry of human immunodeficiency virus 1 (HIV-1) into human host cells. Maraviroc is the only CCR5 antagonist, and it was marketed in 2007. To overcome the shortcomings of maraviroc, structure-based drug design was performed to minimize CYP450 in...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.8b01077
更新日期:2018-11-08 00:00:00
abstract::Protein lysine methyltransferase G9a plays key roles in the transcriptional repression of a variety of genes via dimethylation of lysine 9 on histone H3 (H3K9me2) of chromatin as well as dimethylation of nonhistone proteins including tumor suppressor p53. We previously reported the discovery of UNC0321 (3), the most p...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm200903z
更新日期:2011-09-08 00:00:00
abstract::Malaria is still a leading cause of mortality among children in the developing world, and despite the immense progress made in reducing the global burden, further efforts are needed if eradication is to be achieved. In this context, targeting transmission is widely recognized as a necessary intervention toward that go...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.9b00898
更新日期:2020-03-12 00:00:00
abstract::Although the illness malaria is caused by the asexual blood stages, the presence of gametocytes is directly responsible for the infection of the vector Anopheles, thus perpetuating the plasmodial cycle. Fight against malaria is more than ever a current problem, and the solution will probably go through the development...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm3005898
更新日期:2012-12-13 00:00:00
abstract::Human G93A-superoxide dismutase-1 (G93AhSOD1) mutation causes amyotrophic lateral sclerosis (ALS) in rodents and humans. Recent observations indicate gain of interaction of G93AhSOD1 with cytosolic malate dehydrogenase (MDH1) and subsequent impairment in the malate aspartate shuttle which is vital to neurons. Using fl...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm900631m
更新日期:2009-09-10 00:00:00
abstract::A series of analogues of the fungal peptaibol type metabolite ampullosporin A containing modifications in the C and N terminus as well as alpha-aminoisobutyric acid (Aib) substitutions in different positions of the peptide were synthesized by solid phase synthesis using the 9-fluorenylmethyloxycarbonyl strategy. Depen...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0208018
更新日期:2002-06-20 00:00:00
abstract::A series of novel 3-arylethynyltriazolyl ribonucleosides were synthesized and assessed for their anticancer activity on the drug-resistant pancreatic cancer cell line MiaPaCa-2. Among them, one compound exhibited potent apoptosis-inducing properties and anticancer activity against the pancreatic cancer model MiaPaCa-2...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm900960v
更新日期:2009-10-08 00:00:00
abstract::A series of novel 3-quinolinecarboxylic acid derivatives have been prepared and their antibacterial activity evaluated. These derivatives are characterized by fluorine attached to the 6-position and substituted amino groups appended to the 1- and 7-positions. Structure-activity relationship studies indicate that antib...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00375a003
更新日期:1984-09-01 00:00:00
abstract::2',3'-Epimino analogues of neamine, ribostamycin, and kanamycin B possessing little or no intrinsic antimicrobial activity were designed to enhance the activity of kanamycin A against bacterial strains that elaborate aminoglycoside 3'-phosphotransferases. Routes were devised for their synthesis from the parent antibio...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00175a009
更新日期:1980-01-01 00:00:00
abstract::Dihydropyrimidinones such as compound 12 exhibited high binding affinity and subtype selectivity for the cloned human alpha(1a) receptor. Systematic modifications of 12 led to identification of highly potent and subtype-selective compounds such as (+)-30 and (+)-103, with high binding affinity (K(i) = 0.2 nM) for alph...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm990200p
更新日期:1999-11-18 00:00:00
abstract::A series of novel, disulfide-constrained human beta-melanocyte stimulating hormone (beta-MSH)-derived peptides were optimized for in vitro melanocortin-4 receptor (MC-4R) binding affinity, agonist efficacy, and selectivity. The most promising of these, analogue 18, was further studied in vivo using chronic rat food in...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0501432
更新日期:2005-05-05 00:00:00
abstract::A series of UTP, UDP, and UMP derivatives and analogues were synthesized and evaluated at the human pyrimidinergic P2Y receptor subtypes P2Y2, P2Y4, and P2Y6 stably expressed in 1321N1 astrocytoma cells. Substituents at N3 of UTP were poorly tolerated by P2Y2 and P2Y4 receptors. In contrast, a large phenacyl substitue...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm060848j
更新日期:2006-11-30 00:00:00
abstract::A series of the anti-HIV nucleoside conjugates of either (1-O-alkyl) and thioether (1-S-alkyl) lipids linked by a pyrophosphate diester bond has been synthesized as micelle-forming prodrugs of the nucleosides to improve their therapeutic efficiency. These include AZT 5'-diphosphate-rac-1-S-octadecyl-2-O-palmitoyl-1-th...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm950620o
更新日期:1996-04-26 00:00:00
abstract::We recently described a novel series of CA(1)A(2)X peptidomimetics as farnesyl transferase inhibitors (FTIs). These compounds possess an N-(4-piperidinyl)benzamide scaffold mimicking A(1)A(2) residue. Extensive exploration of structure--activity relationships revealed that replacement of cysteine by substituted benzyl...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm030502y
更新日期:2004-12-30 00:00:00
abstract::There is currently no ideal radiotracer for imaging of protein synthesis rate (PSR) by positron emission tomography (PET). Existing fluorine-18-labeled amino acid-based radiotracers predominantly visualize amino acid transporter processes, and in many cases they are not incorporated into nascent proteins at all. Other...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.6b00968
更新日期:2016-10-27 00:00:00
abstract::The synthesis of chiral 1,5-benzothiazepines 2a-c, 14a-c, 15c, and 16a prepared from cysteine is described. In vitro inhibition of angiotensin converting enzyme (ACE) is reported for each compound. Compound 2c was the most potent in vitro having an IC50 of 2.95 nM. The ester of 2c, i.e. 14c, was found to inhibit the A...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00148a024
更新日期:1985-10-01 00:00:00
abstract::Recently, our group identified that harmine is able to induce β-cell proliferation both in vitro and in vivo, mediated via the DYRK1A-NFAT pathway. Since, harmine suffers from a lack of selectivity, both against other kinases and CNS off-targets, we therefore sought to expand structure-activity relationships for harmi...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.9b01379
更新日期:2020-03-26 00:00:00
abstract::Tankyrases are poly(ADP-ribose) polymerases that have many cellular functions. They play pharmaceutically important roles, at least in telomere homeostasis and Wnt signaling, by covalently ADP-ribosylating target proteins and consequently regulating their functions. These features make tankyrases potential targets for...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm201510p
更新日期:2012-02-09 00:00:00
abstract::Monophenolic (2-(dipropylamino)indans and related compounds have been synthesized and tested for central dopamine-receptor stimulating activity, using biochemical and behavioral tests in rats and emesis tests in dogs. The active compounds possess similar relative potencies in eliciting the three different dopamine-rec...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00136a012
更新日期:1981-04-01 00:00:00
abstract::The structure of fenoterol, a beta2-adrenoceptor agonist used in therapy, has been joined with furoxan NO-donor moieties to give new NO-donor beta2-agonists. The furazan analogues, devoid of the property to release NO, were also synthesized for comparison. All the compounds retained beta2-agonistic activity at micromo...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0704595
更新日期:2007-10-04 00:00:00
abstract::Peptidoaminobenzophenones (1), terminal N-substituted peptidoaminobenzophenones (14), and acylglycylaminobenzophenones (16) were prepared as a novel series of ring-opened derivatives of 1,4-benzodiazepine. Z-Gly- and Z-Ala-N-methylaminobenzophenones (4) were treated with HBr-HOAc to give Gly- and Ala-N-methylaminobenz...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00133a006
更新日期:1981-01-01 00:00:00