Abstract:
:An application of the neural network to quantitative structure-activity relationship (QSAR) analysis has been studied. The new method was compared with the linear multiregression analysis in various ways. It was found that the neural network can be a potential tool in the routine work of QSAR analysis. The mathematical relationship of operation between the neural network and the multiregression analysis was described. It was shown that the neural network can exceed the level of the linear multiregression analysis.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Aoyama T,Suzuki Y,Ichikawa Hdoi
10.1021/jm00171a037subject
Has Abstractpub_date
1990-09-01 00:00:00pages
2583-90issue
9eissn
0022-2623issn
1520-4804journal_volume
33pub_type
杂志文章,评审abstract::A series of 1-(4-fluorophenyl)-1H-indoles substituted at the 3-position with 1-piperazinyl, 1,2,3,6-tetrahydro-4-pyridinyl, and 4-piperidinyl was synthesized. Within all three subseries potent dopamine D-2 and serotonin 5-HT2 receptor affinity was found in ligand binding studies. Quipazine-induced head twitches in rat...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00084a014
更新日期:1992-03-20 00:00:00
abstract::The results of a high-throughput screening assay using the DENV-2 replicon showed that the 2,4-diaminoquinazoline derivative 4a has a high dengue virus inhibitory activity (EC(50) = 0.15 μM). A series of 2,4-diaminoquinazoline derivatives based on 4a as a lead compound were synthesized and subjected to structure-antid...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm2015952
更新日期:2012-04-12 00:00:00
abstract::A series of 26 derivatives of the novel muscarinic antagonist 3-(2-benzofuranyl)quinuclidin-2-ene (1) has been synthesized and evaluated for muscarinic and antimuscarinic properties. The affinity of the compounds was determined by competition experiments in homogenates of cerebral cortex, heart, parotid gland, and uri...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm950455c
更新日期:1996-08-16 00:00:00
abstract::Conformational analysis using molecular mechanics calculations (MM2(87)) has been performed for four different types of benzamides which display high affinity for the dopamine D-2 receptor. In order to elucidate the conformation of the receptor-bound molecules, a previously described dopamine D-2 receptor-interaction ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00091a002
更新日期:1992-06-26 00:00:00
abstract::Synthesis and opioid radioreceptor assay data on analogues closely related to 6-desoxy-6-spiro-alpha-methylene-gamma-lactone 5a, a compound with irreversible activity in this assay, are reported. Saturated lactones (7a,b), endocyclic alpha, beta-unsaturated gamma-lactones (8a,b and 9a), and 6 alpha,7 alpha-fused alpha...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00145a018
更新日期:1985-07-01 00:00:00
abstract::Various sulfonyl-containing compounds (e.g. sulfonamides, sulfones) bind at human 5-HT6 serotonin receptors, but it has been difficult relating the binding mode(s) of such agents to one another, even though many possess a common SO2 moiety, to identify a common pharmacophore model(s). On the basis of the hypothesis th...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm060469q
更新日期:2006-08-24 00:00:00
abstract::Several compounds having portions of the camptothecin ring system were prepared. These compounds were screened against L1210 lymphoid leukemia with negative results. Two of the analogs which contained the pyridine and hydroxylactone D and E rings were also screened for inhibition of DNA and RNA syntheses in HeLa cells...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00239a024
更新日期:1975-05-01 00:00:00
abstract::The synthesis of various chiral derivatives of (+)-erythro-9-(2-hydroxy-3-nonyl)adenine, (+)-EHNA, from (2S,3R)-3-amino-1,2-O-isopropylidene-1,2-nonanediol by condensation with 5-amino-4,6-dichloropyrimidine is described. The compounds synthesized were C1'- and nor-C1'-(+)-EHNA derivatives. When tested with calf splee...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00100a025
更新日期:1992-10-30 00:00:00
abstract::A series of S-alkylated derivatives of 5-mercapto-2'-deoxyuridine have been prepared by alkylation of the preformed nucleoside. Two of these compounds, the S-propargyl and S-allyl derivatives, have shown significant antiviral activity against Herpes simplex type 1 in HeLa TK- cells but appear to be less effective in t...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00179a019
更新日期:1980-05-01 00:00:00
abstract::A structure-based virtual screening (SBVS) was conducted on a ligand-supported homology model of the human histamine H4 receptor (hH4R). More than 8.7 million 3D structures derived from different vendor databases were investigated by docking to the hH4R binding site using FlexX. A total of 255 selected compounds were ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm7014777
更新日期:2008-06-12 00:00:00
abstract::The dihydrochalcone derivatives of the bitter flavonoids naringin and neohesperedin are intensely sweet. Phyllodulcin is as sweet as the dihydrochalcones with similar taste properties although its structure apparently resembles that of bitter flavanone or flavone. Multifaceted approaches, including X-ray crystal struc...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00021a022
更新日期:1995-10-13 00:00:00
abstract::A series of heterocyclic quinones, 6-substituted and 6,7-disubstituted 4-(alkylamino)-5,8-quinazolinediones, have been synthesized in order to evaluate their in vitro cytotoxicity on L1210 leukemia cells. Among 14 derivatives that have been prepared and studied for the structure-activity relationship, the most potent ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00105a007
更新日期:1991-01-01 00:00:00
abstract::A new series of 11-[(aminoalkyl)carbonyl] derivatives of 6,11-dihydrodibenzo[c,f][1,2,5]thiadiazepine 5,5-dioxide (10-39) were synthesized and evaluated for potential antidepressant activity in the apomorphine-induced hypothermia (Apo 16) test. Effects on reserpine-induced hypothermia and toxicity for the most potent ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00108a018
更新日期:1991-04-01 00:00:00
abstract::We have rationally designed a sLe(x) mimetic based on molecular modeling, synthesized type II and type II' beta-turn dipeptides (3a,b), and evaluated their biological profiles both in vitro and in vivo. Against E-selectin-sLe(x) binding, the type II beta-turn dipeptide L-Ser-D-Glu 3a (IC50, 13 microM) and the type II'...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm970262k
更新日期:1997-10-24 00:00:00
abstract::By use of the effectively cleaved beta-secretase (BACE) substrate (1), incorporation of a statine in P(1) resulted in a weak inhibitor 13 of the enzyme. Further substitution of P(1)'-Asp by P(1)'-Val in 13 results in a potent inhibitor 22 of BACE. Removal of the P(10)-P(5) residues on the N-terminal part of inhibitor ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0155695
更新日期:2002-01-17 00:00:00
abstract::Anthraquinone derivatives related to the moderately potent, nonselective P2Y(12) receptor antagonist reactive blue 2 (6) have been synthesized and optimized with respect to P2Y(12) receptor affinity. A radioligand binding assay utilizing human blood platelet membranes and the P2Y(12) receptor-selective antagonist radi...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm9003297
更新日期:2009-06-25 00:00:00
abstract::A series of novel 7-[3-(1-piperidinyl)propoxy]chromenones was synthesized and tested as potential antipsychotics in several in vitro and in vivo assays. The compounds possessed good affinity for D2 receptors, together with a greater affinity for 5-HT2 receptors, a profile which has been proposed as a model for atypica...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm9810396
更新日期:1998-12-31 00:00:00
abstract::Group VIA calcium-independent phospholipase A(2) (GVIA iPLA(2)) has recently emerged as a novel pharmaceutical target. We have now explored the structure-activity relationship between fluoroketones and GVIA iPLA(2) inhibition. The presence of a naphthyl group proved to be of paramount importance. 1,1,1-Trifluoro-6-(na...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm901872v
更新日期:2010-05-13 00:00:00
abstract::A library of approximately 2000 small molecules biased toward inhibition of histone deacetylases was assayed for antimalarial activity in a high-throughput P. falciparum viability assay. Active compounds were cross-analyzed for induction of histone hyperacetylation in a human myeloma cell line to identify HDAC inhibit...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm801654y
更新日期:2009-04-23 00:00:00
abstract::Polyamine analogues 7, 10, 18, 27, and 32 containing cyclopropane rings were obtained by chemical synthesis. Their antineoplastic activities were assessed against the cultured human prostate tumor cell lines DU-145, DuPro, and PC-3. Decamines 32 and 27 exhibited variable levels of cytotoxicity against all three cell l...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm030175u
更新日期:2003-10-09 00:00:00
abstract::A novel class of 2-(4-heterocyclylphenyl)-1,4-dihydropyridines (2-38) possessing antagonist activity against platelet activating factor (PAF) was prepared by the Hantzsch synthesis from a variety of ethyl 4'-heterocyclic-substituted benzoylacetates, aryl or heteroaryl aldehydes, and substituted 3-aminocrotonamides or ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00095a005
更新日期:1992-08-21 00:00:00
abstract::Bioisosteric substitution was used as a tool to generate several new structural alternatives to the thiazolidine-2,4-dione and tetrazole heterocycles as potential antidiabetic agents. Among the initial leads that emerged from this strategy, a family of acidic azoles, isoxazol-3- and -5-ones and a pyrazol-3-one, showed...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00004a008
更新日期:1995-02-17 00:00:00
abstract::EGFR-targeted inhibitors (gefitinib and erlotinib) provided an effective strategy for the treatment of non-small-cell lung cancer. However, the EGFR T790M secondary mutation has become a leading cause of clinically acquired resistance to these agents. Herein, on the basis of the previously reported irreversible EGFR i...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.6b00403
更新日期:2016-08-11 00:00:00
abstract::Podophyllotoxin has been extensively used as a lead agent in the development of new anticancer drugs. On the basis of the previously reported simplified 4-aza-2,3-didehydro podophyllotoxin analogues, we implemented a bioisosteric replacement of the methylenedioxybenzene subunit with a pyrazole moiety to afford tetracy...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm070528f
更新日期:2007-10-18 00:00:00
abstract::Pleuromutilin is an antibiotic that binds to bacterial ribosomes and thereby inhibit protein synthesis. A new series of semisynthetic pleuromutilin derivatives were synthesized by a click chemistry strategy. Pleuromutilin was conjugated by different linkers to a nucleobase, nucleoside, or phenyl group, as a side-chain...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm201266b
更新日期:2012-03-08 00:00:00
abstract::It is necessary for aldosterone synthase (CYP11B2) inhibitors to have both high potency and high selectivity over 11β-hydroxylase (CYP11B1), a critical enzyme for cortisol synthesis. Previous studies have reported a number of CYP11B2 inhibitors, most of which have an imidazole or pyridine ring to coordinate the heme-i...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.8b00328
更新日期:2018-07-12 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::Two series of indenoisoquinoline topoisomerase I inhibitors have been prepared to investigate optimal substituents on the indenone ring at the 9-position. The more exhaustive series was prepared using a nitrated isoquinoline ring that has been previously demonstrated to enhance biological activity. After preliminary b...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm070307+
更新日期:2007-09-06 00:00:00
abstract::A 26-residue peptide BimBH3 binds indiscriminately to multiple oncogenic Bcl2 proteins that regulate apoptosis of cancer cells. Specific inhibition of the BimBH3-Bcl2A1 protein-protein interaction was obtained in vitro and in cancer cells by shortening the peptide to 14 residues, inserting two cyclization constraints ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.8b00010
更新日期:2018-04-12 00:00:00
abstract::Dimethylallylguanidine, also known as galegine, isolated from Galega officinalis, has been shown to have weight reducing properties in vivo. Substitution of the guanidine group with an N-cyano group and replacement of guanidine with amidine, pyrimidine, pyridine, or the imidazole moieties removed the weight reducing p...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm8011933
更新日期:2009-06-11 00:00:00