Amaryllidaceae alkaloids: Absolute configuration and biological activity.
Sign Up to like & getrecommendations! Published in 2017 at "Chirality"
DOI: 10.1002/chir.22719
Abstract: Plants belonging to the Amaryllidaceae family are well known for their ornamental and medicinal use. Plant members of this group are distributed through both tropical and subtropical regions of the world and are dominant in… read more here.
Keywords: amaryllidaceae alkaloids; alkaloids absolute; configuration biological; absolute configuration ... See more keywords
Preparative resolution of stable enantio-enriched POCOP-based planar chiral pincer complexes
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Organometallic Chemistry"
DOI: 10.1016/j.jorganchem.2017.04.007
Abstract: Abstract The η6-coordination of the [CpRu]+ fragment to the aromatic ring of non-symmetric POCOP pincer derivatives of palladium and platinum based on a naphthoresorcinate backbone afforded in one step racemic rac-2a and rac-2b complexes (a = Pd,… read more here.
Keywords: pincer; preparative resolution; resolution stable; absolute configuration ... See more keywords
Effect of doping by enantiomers with the different absolute configuration and phase sequence on mesomorphic, helical and electro-optical properties of highly tilted chiral anticlinic mixture
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2020.113141
Abstract: Abstract The main objective of the present work is to contribute to better understanding of the effect of the absolute configuration and phase sequences of dopants on the self-assembling and physicochemical properties as well as… read more here.
Keywords: phase; electro optical; effect; configuration phase ... See more keywords
Chiral separation, absolute configuration, and bioactivity of two pairs of flavonoid enantiomers from Morus nigra.
Sign Up to like & getrecommendations! Published in 2019 at "Phytochemistry"
DOI: 10.1016/j.phytochem.2019.03.029
Abstract: An undescribed isoprenylated flavonol racemate, nigranol C, with an unprecedented 7/6/6 ring system, was isolated from the twigs of Morus nigra L. The structure was assigned through a comprehensive analysis of HRMS, IR, and NMR… read more here.
Keywords: separation absolute; morus nigra; chiral separation; configuration bioactivity ... See more keywords
Bioactive ent-isopimarane diterpenoids from Euphorbia neriifolia.
Sign Up to like & getrecommendations! Published in 2020 at "Phytochemistry"
DOI: 10.1016/j.phytochem.2020.112373
Abstract: Twelve ent-isopimarane diterpenoids, including six undescribed ones, eupnerias J-O, were isolated from the stem barks of Euphorbia neriifolia L. Structurally, eupnerias J-M were the first examples of 18 (or 19)-norditerpenoid with ent-isopimarane skeleton from E.… read more here.
Keywords: isopimarane; ent isopimarane; bioactive ent; isopimarane diterpenoids ... See more keywords
Application of deuterated THENA for assigning the absolute configuration of chiral secondary alcohols
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2019.01.013
Abstract: Abstract The structure of a constrained bicyclic chiral derivatizing agent (CDA), 1,2,3,4-tetrahydro-1,4-epoxynaphthalene-1-carboxylic acid, THENA 1, was modified by replacing both exo-methylene protons with deuterium atoms. The modified CDA, THENA-d2 2, could be used to assign… read more here.
Keywords: secondary alcohols; absolute configuration; configuration chiral; chiral secondary ... See more keywords
Simultaneous Detection and Distribution of Five Juvenile Hormones in 58 Insect Species and the Absolute Configuration in 32 Insect Species.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of agricultural and food chemistry"
DOI: 10.1021/acs.jafc.3c01168
Abstract: Juvenile hormone (JH) plays an important role in regulating various insect physiological processes. Herein, a novel method (chiral and achiral) for the simultaneous detection of five JHs was established by processing a whole insect without… read more here.
Keywords: absolute configuration; insect species; simultaneous detection; species absolute ... See more keywords
Ifenprodil Stereoisomers: Synthesis, Absolute Configuration, and Correlation with Biological Activity.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of medicinal chemistry"
DOI: 10.1021/acs.jmedchem.0c01912
Abstract: Ifenprodil (1) is a potent GluN2B-selective N-methyl-d-aspartate (NMDA) receptor antagonist that is used as a cerebral vasodilator and has been examined in clinical trials for the treatment of drug addiction, idiopathic pulmonary fibrosis, and COVID-19.… read more here.
Keywords: configuration; ifenprodil; ifenprodil stereoisomers; glun2b nmda ... See more keywords
Halimane Diterpenes in the Alpine Daisy Celmisia viscosa: Absolute Configuration, 2,6-Dideoxyhexopyran-3-ulosides, Conformational Flexibility, and Intraspecific Variation.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of natural products"
DOI: 10.1021/acs.jnatprod.2c00206
Abstract: The methyl-migrated bicyclic skeleton of the halimane diterpenes has been found in a wide range of organisms, including flowering plants, liverworts, marine animals, and bacteria. The discovery of halima-1(10),14-dien-13-ol (3) from the Aotearoa New Zealand… read more here.
Keywords: halimane diterpenes; absolute configuration; viscosa; halimane ... See more keywords
Revision of the Absolute Configuration of Preussilides A-F Established by the Exciton Chirality Method.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of natural products"
DOI: 10.1021/acs.jnatprod.7b00740
Abstract: In a recent contribution to this Journal (J. Nat. Prod. 2017, 80, 1531-1540), Noumeur et al. reported the isolation and structure elucidation of six novel polyketides named preussilides A-F, endowed with remarkable antiproliferative activity. The… read more here.
Keywords: absolute; chirality method; absolute configuration; exciton chirality ... See more keywords
Additional Insights into Hypericum perforatum Content: Isolation, Total Synthesis, and Absolute Configuration of Hyperbiphenyls A and B from Immunomodulatory Root Extracts.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of natural products"
DOI: 10.1021/acs.jnatprod.8b00325
Abstract: Phytochemical investigation of the root extracts of Hypericum perforatum led to the isolation of two biphenyl derivatives named hyperbiphenyls A and B (1 and 2) and four known xanthones (3-6). These structures were elucidated by… read more here.
Keywords: hypericum perforatum; total synthesis; absolute configuration; root extracts ... See more keywords