Abstract:
:In the present study, we have reported synthesis and biological evaluation of a series of fifteen 1-(thiophen-2-yl)-9H-pyrido[3,4-b]indole derivatives against both promastigotes and amastigotes of Leishmania parasites responsible for visceral (L. donovani) and cutaneous (L. amazonensis) leishmaniasis. Among these reported analogues, compounds 7b, 7c, 7f, 7g, 7i, 7j, 7m, 7o displayed potent activity (15.55, 7.70, 7.00, 3.80, 14.10, 9.25, 3.10, 4.85μM, respectively) against L. donovani promastigotes than standard drugs miltefosine (15.70μM) and pentamidine (32.70μM) with good selectivity index. In further, in-vitro evaluation against amastigote forms, two compounds 7g (8.80μM) and 7i (7.50μM) showed significant inhibition of L. donovani amastigotes. Standard drug amphotericin B is also used as control to compare inhibition potency of compounds against both promastigote (0.24μM) and amastigote (0.05μM) forms.
journal_name
Bioorg Chemjournal_title
Bioorganic chemistryauthors
Ashok P,Chander S,Chow LM,Wong IL,Singh RP,Jha PN,Sankaranarayanan Mdoi
10.1016/j.bioorg.2016.11.013subject
Has Abstractpub_date
2017-02-01 00:00:00pages
100-106eissn
0045-2068issn
1090-2120pii
S0045-2068(16)30088-8journal_volume
70pub_type
杂志文章abstract::Alkyl ester prodrugs are well known to be bioconverted by carboxylesterases, particularly in rodents' by first-pass metabolism in the systemic circulation and liver. However, the bioconversion of structurally more complex esters with polar functional groups is less well understood, especially in humans. Therefore, it ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.09.018
更新日期:2018-12-01 00:00:00
abstract::In this work we describe not previously explored binding studies on the reversible interaction of benzoxaborole with ligands of medical and pharmaceutical interest such as nucleosidic drugs gemcitabine and capecitabine, as well as the hydrophobic chemotherapeutic doxorubicin. We include functional derivatives of benzo...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103059
更新日期:2019-09-01 00:00:00
abstract::We report design and synthesis of set of novel anticancer agents based on caffeine-hydrazones bearing 2-hydroxyaryl- or 2-N-heteroaryl moiety. Anticancer activity evaluation using seven cancer cell lines and two non-malignant cell lines demonstrated that several derivatives display significant anticancer activity and ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2015.03.003
更新日期:2015-06-01 00:00:00
abstract::Inspired with an increasing environmental awareness, we performed an eco-friendly amenable process for the synthesis of silver nanoparticles (AgNPs) using the catkins of Piper longum as an alternative approach with the existing methods of using plant extracts. The fabrication of nanoparticles occurred within 10 min. T...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104230
更新日期:2020-10-01 00:00:00
abstract::Chemical investigation of the roots of Croton crassifolius led to the isolation of five pyran-2-one derivatives, including two brand new compounds (1-2), one new natural product (3) and two known compounds (4-5). Their structures and absolute configurations were established by spectroscopic analyses as well as compari...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.05.020
更新日期:2018-09-01 00:00:00
abstract::Six amino acid derived N-glycoconjugates of d-glucose were synthesized, characterized and tested for antibacterial activity against G(+)ve (Bacillus cereus) as well as G(-)ve (Escherichia coli and Klebsiella pneumoniae) bacterial strains. All the tested compounds exhibited moderate to good antibacterial activity again...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2015.10.002
更新日期:2015-12-01 00:00:00
abstract::The coenzyme function of ubiquinone was subject of extensive studies in mitochondria since more than 40 years. The catalytic activity of ubiquinone (UQ) in electron transfer and proton translocation in cooperation with mitochondrial dehydrogenases and cytochromes contributes essentially to the bioenergetic activity of...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1006/bioo.2000.1193
更新日期:2001-02-01 00:00:00
abstract::Five new compounds hostines A-E (1-5), together with eighteen known compounds (6-23), were obtained from the flowers of Hosta plantaginea (Lam.) Aschers, a traditional folk herbal medicine widely used in Mongolian. The structures of the undescribed compounds were determined by using detailed spectroscopic (1D/2D NMR) ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103494
更新日期:2020-01-01 00:00:00
abstract::Aminobenzosuberone-based PfA-M1 inhibitors were explored as novel antimalarial agents against two different Plasmodium falciparum strains. The 4-phenyl derivative 7c exhibited the most encouraging growth inhibitory activity with IC50 values of 6.5-11.2 µM. X-ray crystal structures and early assessment of DMPK/ADME-Tox...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.103750
更新日期:2020-05-01 00:00:00
abstract::A series of iminothiazolines (4a-j) featuring 2,4,5-trichlorophenyl moiety and aroyl/heteroaroyl substituents has been prepared from readily accessible thioureas. In-vitro screening against glucosidase enzymes showed highly specific inhibition of α-glucosidase with a marked dependence of the potency upon the nature of...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2017.07.012
更新日期:2017-10-01 00:00:00
abstract::New thiazolylpyrazolyl coumarin derivatives were synthesized and tested for their anticancer potential in vitro against five different human cell lines, including breast MCF-7, lung A549, prostate PC3, liver HepG2 and normal melanocyte HFB4. Breast carcinoma revealed higher sensitivity towards compounds 7a, 8c, 9b, 9c...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.12.040
更新日期:2019-04-01 00:00:00
abstract::Based on current treatment of Alzheimer's disease, where the carbamate inhibitor Rivastigmine is used, two series of carbamate derivatives were prepared: (i) N-phenylcarbamates with additional carbamate group (1-12) and (ii) N-phenylcarbamates with monosaccharide moiety (13-24). All compounds were tested for the inhib...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.03.012
更新日期:2018-08-01 00:00:00
abstract::A series of new cytisine derivatives with a unique endocyclic scaffold were synthesized and evaluated for their inhibitory effect on collagen α1 (I) (COL1A1) promotor in human LX2 cells, taking cytisine as the lead. Structure-activity relationship (SAR) revealed that introducing a 12N-benzyl substitution might signifi...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103032
更新日期:2019-09-01 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::In the current study, a series of novel 1,2,4-triazol-3-amine derivatives were designed, synthesized, and biologically evaluated in vivo for their anticonvulsant and hypnotic effects in the pentylenetetrazole (PTZ)-induced seizures, maximal electroshock (MES)-induced seizures, and pentobarbital-induced sleeping tests....
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104212
更新日期:2020-11-01 00:00:00
abstract::5-Aryl-1H-tetrazoles (1-24) were synthesized and screened for their xanthine oxidase (XO) inhibitory activity using allopurinol as standard inhibitor (IC50 = 2.0 ± 0.01 µM). Six compounds 3, 4, 5, 9, 21, and 24 exhibited significant to weak activities with IC50 values in the range of 7.4-174.2 µM. Active compounds wer...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.04.021
更新日期:2018-09-01 00:00:00
abstract::Pulmonary fibrosis is a progressive, irreversible, and fatal fibrotic lung disease with a high mortality and morbidity, and commonly nonresponsive to conventional therapy. Inula japonica Thunb. is a traditional Chinese medicine, known as "Xuan Fu Hua" in Chinese, and has been widely applied to relieve cough and dyspne...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104065
更新日期:2020-09-01 00:00:00
abstract::Inhibitors of the enzyme xanthine oxidase (XO) with radical scavenging properties hold promise as novel agents against reperfusion injuries after ischemic events. By suppressing the formation of damaging reactive oxygen species (ROS) by XO or scavenging ROS from other sources, these compounds may prevent a buildup of ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.02.049
更新日期:2019-05-01 00:00:00
abstract::This article describes discovery of a novel and new class of cholinesterase inhibitors as potential therapeutics for Alzheimer's disease. A series of novel isoalloxazine derivatives were synthesized and biologically evaluated for their potential inhibitory outcome for both acetylcholinesterase (AChE) and butyrylcholin...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2015.05.005
更新日期:2015-08-01 00:00:00
abstract::Five previously undescribed 4,5-seco-abietane rearrange diterpenoids (1-5, Prionidipene A-E) were isolated from the aerial parts of Salvia prionitis, along with thirteen known seco-abietane diterpenoids (6-18). The structures of 1-5 were elucidated mainly based on analysis of NMR and MS data. The absolute configuratio...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.08.040
更新日期:2018-12-01 00:00:00
abstract::WDR5, a subunit of the SET/MLL complex, plays critical roles in various biological progresses and are abnormally expressed in many cancers. Here we report the design, synthesis, and biochemical characterization of a new chemical tool to capture WDR5 protein. The probe is a biotinylated version of compound 30 that is a...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2017.11.018
更新日期:2018-02-01 00:00:00
abstract::Nine undescribed (1-4, 6-10) sesquiterpene coumarins, together with a new natural one (5) and ten known ones (11-20), were isolated from the low polarity fraction of the 95% ethanol extract of the resin of Ferula sinkiangensis. Their structures were elucidated based on the comprehensive analysis of HRESIMS, 1D and 2D ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104338
更新日期:2020-11-01 00:00:00
abstract::Ugi reaction was a reliable procedure for the synthesis of new coumarin-quinoline frameworks. Excellent yields, mild reaction conditions and easily available and inexpensive starting materials are advantages of this protocol. Cytotoxic effects of fourteen products were investigated in A2780 human ovarian cancer cells....
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103147
更新日期:2019-10-01 00:00:00
abstract::Fusicoccane-derived diterpenoids bearing a unique bridgehead double-bond-containing tricyclo[9.2.1.03,7]tetradecane (5-9-5 ring system) core skeleton represent a rarely reported class of rearranged terpenoids, which traced back to fusicoccanes with a classical dicyclopenta[a,d]cyclooctane (5-8-5 ring system) core skel...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.103887
更新日期:2020-07-01 00:00:00
abstract::Seven new diterpenoids (1-7), including five 7-membered ring vibsane-type diterpenoids, vibsanolide A-E (1-5) and a pair of epimers of 14,15,16,17-tetranorvibsane-type diterpenoids possessing bicyclo[4.2.1]nonane moiety, vibsanolide F-G (6-7), together with twelve known analogues (8-19) were isolated from the crude ex...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2020.104498
更新日期:2021-01-01 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::Ring-C of oleanolic acid was chemically modified by treating with NBS under a variety of experimental conditions. The structures of the synthesized compounds were established by spectral analysis ((1)H &(13)C NMR and Mass). All the compounds were evaluated against a panel of five human cancer cell lines by using MTT a...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2016.08.001
更新日期:2016-10-01 00:00:00
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::In this work a set of novel derivatives of parabanic acid 9a-d, 12a-d and 13a-d was synthesized and their anticonvulsant potential was evaluated. All the compounds under investigation exhibited anticonvulsant activity in both scPTZ and MES tests. In phase II anticonvulsant study, the trimethoxy phenyl derivative 9a ev...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2019.103473
更新日期:2020-01-01 00:00:00
abstract::In an effort to discover novel inhibitors of M. tuberculosis Caseinolytic proteases (ClpP1P2), a combination strategy of virtual high-throughput screening and in vitro assay was employed and a new pyrrole compound, 1-(2-chloro-6-fluorobenzyl)-2, 5-dimethyl-4-((phenethylamino)methyl)-1H-pyrrole-3-carboxylate was found ...
journal_title:Bioorganic chemistry
pub_type: 杂志文章
doi:10.1016/j.bioorg.2018.06.004
更新日期:2018-10-01 00:00:00