Abstract:
:2-Pyrazolins 14a-l and pyrazoles 15a-l were designed as celecoxib analogs for the evaluation of their in vitro COX-1/COX-2 inhibitory activity and the in vivo anti-inflammatory activity. Compounds 14i, 15a, 15d and 15f were the most COX-2 selective derivatives (S.I.=5.93, 6.08, 5.03 and 5.27 respectively) while the pyrazoline derivatives 14g and 14i exhibited the highest AI activity (ED50=190.5 and 160.1μmol/kg po, respectively).
journal_name
Bioorg Chemjournal_title
Bioorganic chemistryauthors
Abdellatif KR,Elshemy HA,Azoz AAdoi
10.1016/j.bioorg.2015.09.002subject
Has Abstractpub_date
2015-12-01 00:00:00pages
13-23eissn
0045-2068issn
1090-2120pii
S0045-2068(15)30017-1journal_volume
63pub_type
杂志文章abstract::The 3'-amino and carboxy functionalize thymidines execute their ribonucleolytic inhibition activity for angiogenin. These modified nucleosidic molecules inhibit the ribonucleolytic activity of angiogenin in a competitive manner like the other conventional nucleotidic inhibitors, which have been confirmed from kinetic ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2013.11.005
更新日期:2014-02-01 00:00:00
abstract::Biological membranes are one of the most important elements of living cells determining their permeability to the active compounds. Still, little is known about the drug-membrane interactions in terms of pharmacological properties of potential drugs. Chemoprevention based on natural compounds is becoming a strong tren...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103242
更新日期:2019-11-01 00:00:00
abstract::Eleven undescribed quinolone alkaloids, pesimquinolones I-S (1-4 and 6-12), as well as eleven known congeners (5 and 13-22), were isolated from the solid culture broth of the fungus Penicillium simplicissimum. Their chemical structures with absolute configurations were established by a combination of NMR spectroscopy,...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2021.104635
更新日期:2021-01-08 00:00:00
abstract::The isomerization of l-amino acids in peptides and proteins into d-configuration under physiological conditions would affect the physiological dysfunction and caused protein conformational diseases. The presence of d-amino acids might change the higher-order structure of proteins and triggered abnormal aggregation. In...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104389
更新日期:2020-12-01 00:00:00
abstract::Drug resistance and cancer cells metastasis have been the leading causes of chemotherapy failure and cancer-associated death in breast cancer patients. In present, various active molecules either exhibiting novel mechanism of action such as inducing autophagy or inhibiting metastasis have been developed to address the...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.11.025
更新日期:2019-03-01 00:00:00
abstract::Recently, the pyridazine nucleus has been widely studied in the field of particular and new medicinal factors as drugs acting on the cardiovascular system. Additionally, a number of thienopyridazines have been claimed to possess interacting biological macromolecules and pharmacological activities such as NAD(P)H oxida...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103213
更新日期:2019-11-01 00:00:00
abstract::A series of tellurides was evaluated as carbonic anhydrase (CA, EC 4.2.1.1) inhibitors against the human (h) carbonic anhydrase isoforms hCA I, II, IV, VII and IX, involved in a variety of diseases, including glaucoma, retinitis pigmentosa, epilepsy, arthritis and tumors. These compounds, which are the first tellurium...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2017.12.010
更新日期:2018-02-01 00:00:00
abstract::A new series of derivatives characterized by the presence of the 3,4,5-trimethoxylbenzamide substituted benzofurans were synthesized and evaluated for antiproliferative activity against four cancer cell lines and one normal human cell line. Among them, derivative 6g with greatest cytotoxicity significantly inhibited t...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104076
更新日期:2020-09-01 00:00:00
abstract::The competitive inhibition constants of series of inhibitors related to phenylacetic acid against both wild-type and the doubly mutanted C298A/W219Y aldose reductase have been measured. Van't Hoff analysis shows that these acids bind with an enthalpy near -6.8 kcal/mol derived from the electrostatic interactions, whil...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2006.09.004
更新日期:2006-12-01 00:00:00
abstract::Focal adhesion kinase (FAK) is an intracellular non-receptor tyrosine kinase responsible for development of various tumor types. Aiming to explore new potent inhibitors, two series of 2,4-disubstituted-7H-pyrrolo[2,3-d]pyrimidine derivatives were designed and synthesized on the base of structure-based design strategy....
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104092
更新日期:2020-09-01 00:00:00
abstract::To discover new natural-product-based pesticides, we structurally modified andrographolide, a labdane diterpenoid isolated from Andrographis paniculata, and stereoselectively prepared a series of 12α-(substituted)benzylamino-14-deoxyandrographolide derivatives (I-V). Three-dimensional structures of compounds 3c, 3d, I...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.01.020
更新日期:2019-05-01 00:00:00
abstract::A series of six novel and six known thieno[2,3-d]pyrimidin-4-amines 2-13 were synthesized, and further were used as a starting material for preparation of a small series of eight novel thieno[2,3-d]pyrimidin-4-phthalimides 14-21. Eight compounds, five amine and three phthalimide derivatives, inhibited bovine pancreati...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.07.009
更新日期:2018-10-01 00:00:00
abstract::A series of novel pyrimidylaminoquinoline derivatives 8(a-i) and 9(a-i) containing amino side chain, and the bisaminoquinoline analogs 3(b-e) have been designed and synthesized by structural modifications on a lead DOT1L inhibitor, 3a. All the compounds have been evaluated for their DOT1L inhibitory activities. The re...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.07.022
更新日期:2018-10-01 00:00:00
abstract::Two new series of ethyl benzoate bearing pyrrolizine and indolizine moieties 8-11 were synthesized and evaluated for their anti-inflammatory and anticancer activities. Among these derivatives, compounds 9a, 10b and 11b displayed in vivo anti-inflammatory and analgesic activity comparable to ibuprofen. The acute ulcero...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103371
更新日期:2020-01-01 00:00:00
abstract::Oleanolic and ursolic acids are two ubiquitous isomeric triterpene phytochemicals known for their anticancer activity. A set of derivatives of the two compounds with a modified oxidation state and lipophylicity at C-3 and C-28 positions, were prepared and tested as anticancer agents versus the lines HepG2, Hep3B and H...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103054
更新日期:2019-09-01 00:00:00
abstract::Combining two bioactive moieties by covalent bond into a novel single hybrid biological entity in view of the principle of active splicing, twenty-two C28-modified derivatives of pentacyclic dihydroxytriterpene carboxylic acids with saturated nitrogen heterocycle segments (i.e. 1-deoxynojirimycin or piperazines) have ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.103694
更新日期:2020-04-01 00:00:00
abstract::Chalcones (1, 3-Diphenyl-2-propen-1-one) consist of a three carbon α, β-unsaturated carbonyl system and act as precursors for the biosynthesis of flavonoids in plants. However, laboratory synthesis of various chalcones has also been reported. Both natural and synthetic chalcones are known to exhibit a variety of pharm...
journal_title:Bioorganic chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.bioorg.2019.03.033
更新日期:2019-06-01 00:00:00
abstract::We report herein the synthesis and the in vitro antileishmanial evaluation of 5-substituted-2'-deoxyuridine nucleosides. The most active compound against Leishmania donovani promastigotes was Thia-dU (3a) with an IC50 =3 microM. This compound exhibited the same activity as zidovudine (3'-azido-2'-deoxythymidine) used ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2005.07.001
更新日期:2005-12-01 00:00:00
abstract::In this work we describe the synthesis, Ca+2 channel blockade capacity and antioxidant power of N3,N5-bis(2-(5-methoxy-1H-indol-3-yl)ethyl)-2,6-dimethyl-4-aryl-1,4-dihydropyridine-3,5-dicarboxamides 1-9, a number of multi-target small 1,4-dihydropyridines (DHP), designed by juxtaposition of melatonin and nimodipine. A...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103205
更新日期:2019-10-01 00:00:00
abstract::Novel Mannich base analogues of pyrrolo[3,4-d]pyridazinone 7a,b-13a,b are designed and synthesized as potential anti-inflammatory agents. The title compounds are obtained via convenient one-pot synthesis with good yields. Their structures and properties are described by spectroscopic techniques and elemental analyses....
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104035
更新日期:2020-09-01 00:00:00
abstract::The lactonization process of Cl-cis,cis-muconate catalyzed by anti-muconate lactonizing enzyme (anti-MLE) was studied theoretically with the aid of a combined quantum mechanics/molecular mechanics (QM/MM) approach. Two elementary processes steps involved in the lactanization process were investigated. The calculated e...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.05.007
更新日期:2018-10-01 00:00:00
abstract::Four cationic porphyrin-anthraquinone (Por-AQ) hybrids differing in lengths of flexible alkyl linkage, 5-[4-(1-N-anthraquinonon-yl)-L-oxophenyl]-10,15,20-tris(N-methylpyridinium-4-yl)porphyrin triiodide, (L = acetyl, pentanoyl, octanoyl, undecanoyl, designed as [AQATMPyP]I3, [AQPTMPyP]I3, [AQOTMPyP]I3 and [AQUTMPyP]I3...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2008.08.002
更新日期:2008-12-01 00:00:00
abstract::Plant compounds have been identified as new drug prototypes. In this line, this work aimed to isolate the indole alkaloid affinisine from Tabernaemontana catharinensis and test its antitumor activity. The alkaloid was isolated by silica gel open column chromatography from the ethanolic extract of the stem of T. cathar...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103079
更新日期:2019-09-01 00:00:00
abstract::One new eudesmane sesquiterpenoid, 11β-hydroxy-13-chloro-eudesm-5-en-12, 8-olide (1), was isolated from the roots of Inula helenium together with nine eudesmanolides (2-10) and one germacranolide (11). Their structures were elucidated on the basis of detailed spectroscopic analyses. All isolates were evaluated for the...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.01.055
更新日期:2019-05-01 00:00:00
abstract::Triterpenoids are in the focus of scientific interest, and they were evaluated for many pharmacological applications among them their ability to act as inhibitors of cholinesterases. These inhibitors are still of interest as drugs that improve the life quality of patients suffering from age-related dementia illnesses ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.12.013
更新日期:2019-04-01 00:00:00
abstract::Aldose reductase (AR) catalyzes the NADPH-dependent reduction of glucose to sorbitol in the polyol pathway, which plays an important role in the development of diabetic complications including cataract, retinopathy, nephropathy, and neuropathy. AR has been considered as an important target to heal these long-term diab...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104110
更新日期:2020-09-01 00:00:00
abstract::Convenient structures such as 2,4-diketo esters have been widely used as an effective pattern in medicinal chemistry and pharmacology for drug discovery. 2,4-Diketonate is a common scaffold that can be found in many biologically active and naturally occurring compounds. Also, many 2,4-diketo ester derivatives have bee...
journal_title:Bioorganic chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.bioorg.2020.104343
更新日期:2020-12-01 00:00:00
abstract::A series of new N-acyl 8,9-dihydro-4-methoxy-7H-2-benzo[de]quinolinalkanamines have been prepared and tested for their ability to activate pigment granule aggregation in Xenopus laevis melanophores and bind to the recombinant human MT(1) and MT(2) melatonin receptor subtypes expressed in NIH 3T3 cells. Compounds with ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2006.11.006
更新日期:2007-04-01 00:00:00
abstract::Three new compounds, including a prenylated tryptophan derivative, luteoride E (1), a butenolide derivative, versicolactone G (2), and a linear aliphatic alcohol, (3E,7E)-4,8-dimethyl-undecane-3,7-diene-1,11-diol (3), together with nine known compounds (4-12), were isolated and identified from a coral-associated fungu...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.06.029
更新日期:2018-10-01 00:00:00
abstract::The reactions of a ribonuclease model substrate, the compound uridine-3'-p-nitrophenyl phosphate, have been examined using heavy-atom isotope effects and stereochemical analysis. The cyclization of this compound is subject to catalysis by general base (by imidazole buffer), specific base (by carbonate buffer), and by ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1006/bioo.2000.1170
更新日期:2000-06-01 00:00:00