Results 101 to 110 of about 103,451 (274)

Concise and Straightforward Asymmetric Synthesis of a Cyclic Natural Hydroxy-Amino Acid

open access: yesMolecules, 2014
An enantioselective total synthesis of the natural amino acid (2S,4R,5R)-4,5-di-hydroxy-pipecolic acid starting from D-glucoheptono-1, 4-lactone is presented.
Mario J. Simirgiotis   +3 more
doaj   +1 more source

A Strategy for Imidazotetrazine Prodrugs with Anti-cancer Activity Independent of MGMT and MMR [PDF]

open access: yes, 2012
The imidazotetrazine ring is an acid-stable precursor and prodrug of highly-reactive alkyl diazonium ions. We have shown that this reactivity can be managed productively in an aqueous system for the generation of aziridinium ions with 96% efficiency. The
Garelnabi, EAE   +7 more
core   +1 more source

In‐situ‐Konstruktion von Imidazopyridinium‐Fluoreszenzlabels für Biokonjugationen

open access: yesAngewandte Chemie, EarlyView.
Durch Chromophor‐Engineering von Isochinolinaldehyden entstehen TICT‐basierte fluorogene Farbstoffe für die In Situ Markierung unterschiedlicher (Bio‐)Moleküle mit großen Stokes‐Verschiebungen, die mit der Zellbildgebung kompatibel sind. ZUSAMMENFASSUNG Einfache, effiziente Transformationen fluorogenen Charakters, die unter biokompatiblen Bedingungen ...
Dongchen Du   +7 more
wiley   +1 more source

A Native Hymenopteran Predator of \u3ci\u3eAgonopterix Alstroemeriana\u3c/i\u3e (Lepidoptera: Oecophoridae) in East-Central Illinois [PDF]

open access: yes, 2018
Agonopterix alstroemeriana is a European oecophorid moth that defoliates poison hemlock (Conium maculatum), a noxious Eurasian weed extensively naturalized throughout temperate Australia, New Zealand, North America, and South America.
Berenbaum, May R   +2 more
core   +2 more sources

Photocaged Oxytocin and Vasopressin Probes to Decipher Neuropeptide Signalling With High Spatiotemporal Resolution

open access: yesAngewandte Chemie International Edition, EarlyView.
Novel and biocompatible photoactivatable oxytocin and vasopressin probes, utilising state‐of‐the‐art photocages, remain inactive in the dark. Light exposure facilitates rapid spatiotemporal receptor activation and phospholipase C (PLC)‐mediated downstream signalling. Figure created in https://BioRender.com.
Konstantin Raabe   +7 more
wiley   +1 more source

Crystal structure of 4-chloro-N-[2-(piperidin-1-yl)ethyl]benzamide monohydrate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C14H19ClN2O2·H2O, the piperdine ring adopts a chair conformation. The dihedral angle between the mean plane of the piperidine ring and that of the phenyl ring is 41.64 (1)°.
K. Prathebha   +4 more
doaj   +1 more source

Anticonvulsant mechanisms of piperine, a piperidine alkaloid

open access: yesChannels, 2015
Piperine, a natural compound isolated from the fruits of Piper, is known to modulate several neurotransmitter systems such as serotonin, norepinephrine, and GABA, all of which have been linked to the development of convulsions.
Awanish Mishra   +4 more
semanticscholar   +1 more source

\u3ci\u3eAgonopterix Alstroemeriana\u3c/i\u3e (Oecophoridae) and Other Lepidopteran Associates of Poison Hemlock \u3ci\u3e(Conium Maculatum)\u3c/i\u3e in East Central Illinois [PDF]

open access: yes, 2017
Poison hemlock (Conium maculatum) (Apiaceae), a noxious Eurasian weed extensively naturalized throughout North America, is characteristically attacked by few insects.
Berenbaum, May R, Harrison, Terry L
core   +2 more sources

In Situ Construction of Imidazopyridinium Fluorescent Labels for Bioconjugation

open access: yesAngewandte Chemie International Edition, EarlyView.
Chromophore engineering of isoquinoline aldehydes generates TICT‐based fluorogenic dyes for in situ labeling of diverse (bio)molecules with large Stokes shifts compatible with cell imaging. ABSTRACT Simple, efficient transformations of fluorogenic nature that proceed under biocompatible conditions without the formation of byproducts are of high ...
Dongchen Du   +7 more
wiley   +1 more source

Crystal structure of the 1:2 adduct of bis(piperidinium) sulfate and 1,3-dimethylthiourea

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, 2C5H12N+·SO42−·2C3H8N2S, the C=S groups of the two independent 1,3-dimethylurea molecules and the sulfur atom of the anion lie on twofold axes. The packing is centred on bis(piperidinium) sulfate ribbons parallel to the c axis; the
Cindy Döring   +2 more
doaj   +1 more source

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