Abstract：
:New analogs of cyclic amino acid-conjugated bile acids were synthesized, and their physicochemical and biological properties were compared with those of natural analogs. Ursodeoxycholic acid was amidated with D-proline, L-proline, 4-hydroxy-L-proline, and 4-methoxy-L-proline. Hyocholic and hyodeoxycholic acids were amidated with L-proline. The physicochemical properties were similar to those of the natural analogs. All of them were highly stable toward enzymatic C-24 amide bond hydrolysis and 7-dehydroxylation. Their transport, metabolism, and effect on biliary lipid secretion were evaluated in bile fistula rat after intravenous infusion. All the analogs were secreted in bile unmodified. The 4-methoxy-L-proline derivative produced the highest secretion rate, much higher than those of all the other natural and synthetic analogs. This was associated with a selective reduction of cholesterol secretion with normal phospholipid secretion and choleresis. When coinfused, all the analogs were able to prevent the hepatotoxicity induced by intravenous taurochenodeoxycholic acid, as revealed by normal choleresis, alkaline phosphatase, and lactate dehydrogenase values in bile. Considering the overall data, 4-methoxy-L-proline, 4-hydroxy-L-proline, and L-proline derivatives of ursodeoxycholic acid were more potent than the natural analogs.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Roda A,Cerrè C,Manetta AC,Cainelli G,Umani-Ronchi A,Panunzio Mdoi
10.1021/jm9508503subject
Has Abstractpub_date
1996-05-24 00:00:00pages
2270-6issue
11eissn
0022-2623issn
1520-4804pii
jm9508503journal_volume
39pub_type
杂志文章abstract：:(+/-)-7-Aminosulfonyl-3-fluoromethyl-1,2,3,4-tetrahydroisoquinoline (7) is one of the most potent and selective inhibitors of phenylethanolamine N-methyltransferase (PNMT) reported to date, but a blood-brain barrier (BBB) model indicates that it cannot penetrate the BBB. To increase the lipophilicity of 7 by addition ...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm0400653
更新日期：2004-08-26 00:00:00
abstract：:We report novel inhibitors of Gli1-mediated transcription as potential anticancer agents. Focused chemical libraries were designed and assessed for inhibition of functional cell-based Gli1-mediated transcription and selective toxicity toward cancer cells. The SAR was revealed, and the selectivity of the lead compounds...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm900106f
更新日期：2009-07-23 00:00:00
abstract：:New analogues of flavone-8-acetic acid were synthesized, bearing an alkoxy group in position 3 and different substituents on the benzene ring in position 2 of the flavone nucleus. The compounds were tested for direct cytotoxicity against four human tumor cell lines and for indirect antitumor effects by measuring their...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm030771o
更新日期：2003-08-14 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：:Indoleamine 2,3-dioxygenase 1 (IDO1) catalyzes the rate-limiting step in the kynurenine pathway of tryptophan metabolism, which is involved in immunity, neuronal function, and aging. Its implication in pathologies such as cancer and neurodegenerative diseases has stimulated the development of IDO1 inhibitors. However,...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/acs.jmedchem.9b00942
更新日期：2019-10-10 00:00:00
abstract：:Substituted 6-anilinouracils were found to be potent inhibitors of the replication-specific enzyme, DNA polymerase III, from Bacillus subtilis. Inhibition potency was maximized by inclusion of small alkyl groups or halogens in the meta and para positions of the phenyl ring; polar substituents decreased activity consi...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00175a007
更新日期：1980-01-01 00:00:00
abstract：:The development of a novel class of nonsteroidal human progesterone receptor (hPR) agonists, 5-aryl-1,2-dihydro-5H-chromeno[3,4-f]quinolines 2, is described. The introduction of a 5-aryl group into the 1,2-dihydrocoumarino[3,4-f]quinoline core 1 is the key for progestational activities. The structure-activity relation...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm9705768
更新日期：1998-01-29 00:00:00
abstract：:In an effort to develop selective inhibitors of vesicular acetylcholine storage, we have synthesized a series of semirigid vesamicol receptor ligands based on the structure of 2-(4-phenylpiperidino)-cyclohexanol (vesamicol, AH5183, 1). In these compounds, the planes of the phenyl and piperidyl moieties of the parent l...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00042a010
更新日期：1994-08-05 00:00:00
abstract：:To design and synthesize new potent and selective antagonists of the human A(3) adenosine receptor, pharmacophoric hypotheses were generated with the software Catalyst for a comprehensive set of compounds retrieved from previous literature. Three of these pharmacophores were used to drive the optimization of a molecul...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm051112+
更新日期：2006-07-13 00:00:00
abstract：:Mechanism-based inhibitors of human cytomegalovirus (HCMV) protease have been designed based on the pyrrolidine-5,5-trans-lactam ring system. New routes to the beta-methyl-, desmethyl-, and alpha-methyl-pyrrolidine-5,5-trans-lactam templates have been developed from 2,4-diaminobutyric acid. ESI/MS studies have shown t...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm000078q
更新日期：2000-11-16 00:00:00
abstract：:Prolonged drug-target occupancy has become increasingly important in lead optimization, and biophysical assays that measure residence time are in high demand. Here we report a practical label-free assay methodology that provides kinetic and affinity measurements suitable for most target classes without long preincubat...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/acs.jmedchem.7b01829
更新日期：2018-06-28 00:00:00
abstract：:A variety of esters of methyldopa was synthesized with the objective of obtaining derivatives that would be more efficiently absorbed from the gastrointestinal tract than the free amino acid and would undergo conversion to methyldopa readily in the blood or target tissues. Two of the esters, alpha-pivaloyloxyethyl (4u...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00206a006
更新日期：1978-08-01 00:00:00
abstract：:A novel series of nonpeptide angiotensin II (A II) antagonists containing a pyrimidinone ring which carries a C-linked biphenyltetrazole moiety and a carboxyheteroaryl group on the 3-position have been prepared. Their affinity for the AT1 receptor was determined in a binding assay on rat adrenal cortical membranes. Th...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00024a008
更新日期：1995-11-24 00:00:00
abstract：:The dynorphin (Dyn) A analogue zyklophin ([N-benzyl-Tyr(1)-cyclo(d-Asp(5),Dap(8))]dynorphin A(1-11)NH2) is a kappa opioid receptor (KOR)-selective antagonist in vitro, is active in vivo, and antagonizes KOR in the CNS after systemic administration. Hence, we synthesized zyklophin analogues to explore the structure-act...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm501827k
更新日期：2015-11-25 00:00:00
abstract：:Although there is a significant effort in the design of a selective CDK9/CycT1 inhibitor, no compound has been proven to be a specific inhibitor of this kinase so far. The aim of this research was to develop novel and selective phosphorus containing CDK9/CycT1 inhibitors. Molecules bearing phosphonamidate, phosphonate...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm401742r
更新日期：2014-05-22 00:00:00
abstract：:We explore the significance of pi-cation interactions in the binding of ligands to nicotinic acetylcholine receptors. Specifically, the Austin method of semiempirical molecular orbital theory is utilized to estimate the interaction of aromatic amino acid side chains with the cation-containing heterocyclic ring fragmen...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm990093z
更新日期：1999-08-12 00:00:00
abstract：:A novel series of nonpeptidic angiotensin II (AII) receptor antagonists is reported, derived from linkage of the biphenylcarboxylic acid or biphenylyltetrazole moiety found in previously described antagonists via a methyleneoxy chain to the 4-position of a 2-alkyl quinoline. When evaluated in an in vitro binding assay...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00100a007
更新日期：1992-10-30 00:00:00
abstract：:Recent studies have indicated several therapeutic applications for delta opioid agonists and antagonists. To exploit the therapeutic potential of delta opioids developing a structural basis for the activity of ligands at the delta opioid receptor is essential. The conformationally sampled pharmacophore (CSP) method (B...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm0612463
更新日期：2007-04-19 00:00:00
abstract：:The enantiomers of reduced haloperidol (3a), azaperol (3b), and the related compound BMY-14802 (3c) were prepared in high optical purity. The affinity of these compounds for dopamine D2 and D3 receptors, and sigma S1 and S2 sites was determined in vitro. Both enantiomers of 3a display greatly decreased affinity for D2...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00076a022
更新日期：1993-11-26 00:00:00
abstract：:Compounds that simultaneously activate the three peroxisome proliferator-activated receptor (PPAR) subtypes alpha, gamma, and delta hold potential to address the adverse metabolic and cardiovascular conditions associated with diabetes and the metabolic syndrome. We recently identified the indanylacetic acid moiety as ...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm061299k
更新日期：2007-03-08 00:00:00
abstract：:Benzodiazepines (BZ) exert their effects through GABAA receptors, which belong to the superfamily of ligand-gated ion channels. Coexpression of recombinant alpha, beta, and gamma subunits in a cell culture system mimics the BZ binding sites. The alpha variants largely determine the nature of the BZ binding site in suc...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00052a019
更新日期：1994-12-23 00:00:00
abstract：:Largazole 4a and analogues with modifications at the C7 position, as well as 2,4'-bithiazole 5a, have been synthesized using an acyclic cross-metathesis of the corresponding depsipeptide structures assembled by N-C6(O) or C15(O)-N lactam formation. Similar to the parent system 4a, the series of largazole depsipeptides...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm100244y
更新日期：2010-06-24 00:00:00
abstract：:The photoswitchable N-terminal diazo and triazene-dipeptide aldehydes 8a-d, 10a,b, and 17a,b present predominantly as the (E)-isomer, which purportedly binds deep in the S3 pocket of calpain. All compounds are potent inhibitors of m-calpain, with 8b being the most active (IC50 of 35 nM). The diazo-containing inhibitor...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm061455n
更新日期：2007-06-14 00:00:00
abstract：:We report the design, synthesis, and biological evaluation of heterocyclic-fused pyrimidines as tubulin polymerization inhibitors targeting the colchicine binding site with significantly improved therapeutic index. Additionally, for the first time, we report high-resolution X-ray crystal structures for the best compou...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/acs.jmedchem.7b01858
更新日期：2018-02-22 00:00:00
abstract：:A series of structurally related mono- and bis-1,3-disubstituted 2-[(hydroxyimino)methyl]imidazolium halides were evaluated in vitro for their ability to reactivate electric eel, bovine, and human erythrocyte (RBC) acetylcholinesterases (AChE) inhibited by ethyl p-nitrophenyl methylphosphonate (EPMP) and 3,3-dimethyl-...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00122a034
更新日期：1989-02-01 00:00:00
abstract：:C-terminal fragment analogues of the leech anticoagulant peptide hirudin represent a unique class of thrombin inhibitors that blocks thrombin's cleavage of fibrinogen but does not block the catalytic site of thrombin. In this paper, a series of synthetic peptides were prepared by solid-phase methodology to determine t...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00400a020
更新日期：1988-05-01 00:00:00
abstract：:Pyrazolo[3,4-d]pyrimidines are potent protein kinase inhibitors with promising antitumor activity but suboptimal aqueous solubility, consequently worth being further optimized. Herein, we present the one-pot two-step procedure for the synthesis of a set of pyrazolo[3,4-d]pyrimidine prodrugs (1a-8a and 9a-e) with highe...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/acs.jmedchem.7b00637
更新日期：2017-07-27 00:00:00
abstract：:Chain-extended analogues of methotrexate were synthesized by condensation of 4-amino-4-deoxy-N10-methylpteroic acid with esters of L-alpha-aminoadipic, L-alpha-aminopimelic, and L-alpha-aminosuberic acids, followed by ester hydrolysis with acid or base. Coupling was accomplished in up to 85% yield by the use of the pe...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm00366a012
更新日期：1983-12-01 00:00:00
abstract：:The antiseizure activity of benzodiazepines (BDZs) 1-5 in mice and rats as animal models is described. These BDZs have selective efficacy for alpha2beta3gamma2 and alpha3beta3gamma2 GABA(A)-receptors. Significant anticonvulsant activity with little or no motor impairment and therapeutic indexes (TI) of 2.8-44 (mice, i...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm801652d
更新日期：2009-04-09 00:00:00
abstract：:The new pyrimidine derivatives of 2,3-O, O-dibenzyl-6-deoxy-L-ascorbic acid (8-10) were synthesized by condensation of uracil and its 5-fluoro- and 5-trifluoromethyl-substituted derivatives with 4-(5,6-epoxypropyl)-2, 3-O,O-dibenzyl-L-ascorbic acid (7), while pyrimidine derivatives of 4,5-didehydro-5,6-dideoxy-L-ascor...
journal_title：Journal of medicinal chemistry
pub_type： 杂志文章
doi：10.1021/jm0009540
更新日期：2000-12-14 00:00:00
