Results 151 to 160 of about 200,870 (399)

Catalyst‐Free Direct Hydrocarbonation of Terminal Alkynes Toward E‐Alkene Substituted Stabilized Sulfoxonium Ylides

Advanced Science, EarlyView.
The authors introduce a high‐throughput synthesis using amide‐sulfoxonium ylides as new nucleophilic reagents, enabling a catalyst‐ and base‐free hydrocarbonation of terminal alkynes under mild conditions, resulting in various E‐alkene substituted (hetero)amide‐sulfoxonium ylides with excellent regio‐ and stereoselectivity. The late‐stage modifications
Haiting Wu, Yougen Xu, An Lin, Jingyuan Liu, Huanjun Chen, Shimin Xie, Lebin Su   +6 more
wiley   +1 more source

Synthesis of constrained analogues of tryptophan

Beilstein Journal of Organic Chemistry, 2015
A Lewis acid-catalysed diastereoselective [4 + 2] cycloaddition of vinylindoles and methyl 2-acetamidoacrylate, leading to methyl 3-acetamido-1,2,3,4-tetrahydrocarbazole-3-carboxylate derivatives, is described.
Elisabetta Rossi, Valentina Pirovano, Marco Negrato, Giorgio Abbiati, Monica Dell’Acqua   +4 more
doaj   +1 more source

Indole moiety induced biological potency in pseudo- peptides derived from 2-amino-2-(1H-indole-2-yl) based acetamides: synthesis, structure and computational investigations [PDF]

arXiv, 2018
We report the synthesis and theoretical investigations of three novel pseudo-peptide molecules derived from 2-amino-2-(1H-indole-2-yl) acetamides. The compounds were subjected to spectroscopic characterization ($^1$H, $^{13}$C-NMR and MS) and their chemical, electronic, and optical properties have been investigated.
arxiv  

Virome and Experimental Analysis Reveal Tryptophan‐Like Dissolved Organic Matter Contributes to the Persistence of Plant Viruses in River Water

Advanced Science, EarlyView.
Tryptophan‐like dissolved organic matter (Try‐like DOM), a key component of organic matter in river ecosystems, demonstrates significant protective effects against plant viruses. The protective mechanism operates via a “swimming firewall” mode, whereby free Try‐like DOM attenuates ultraviolet (UV) radiation and scavenges reactive oxygen species ...
Yujie Wang, Ming Chen, Liu Yang, Jun Ma, Jian Tang, Shengjun Wu, Chi He, J. Paul Chen   +7 more
wiley   +1 more source

Nukuhivensiums, Indolo[2,3-a]quinoliziniums from the Marquesan Plant Rauvolfia nukuhivensis

Molecules, 2012
The first phytochemical inspection of the Marquesan endemic plant Rauvolfia nukuhivensis led to the isolation and structure characterization of two new indolo[2,3‑a]quinolizinium derivatives named nukuhivensium (1) and N12-methyl-nukuhivensium (2).
Phila Raharivelomanana, Olivier P. Thomas, Gael Lecellier, Soizic Prado, Nicolas J. Martin   +4 more
doaj   +1 more source

Inhibition of Transport of Indole-3-Acetic Acid in the Etiolated Hypocotyl of Phaseolus Vulgaris L. [PDF]

, 1956
JA Zwar, AHGC Rijven
openalex   +1 more source

Engineered Tissue Models to Decode Host–Microbiota Interactions

Advanced Science, EarlyView.
Host–Microbiota interactions in the human body. Created in BioRender. Ghezzi, C. (2025) https://BioRender.com/ihivskg. Abstract A mutualistic co‐evolution exists between the host and its associated microbiota in the human body. Bacteria establish ecological niches in various tissues of the body, locally influencing their physiology and functions, but ...
Miryam Adelfio, Grace E. Callen, Xuesong He, Bruce J. Paster, Hatice Hasturk, Chiara E. Ghezzi   +5 more
wiley   +1 more source

A greener approach toward N − 1 heteroarylation of indoles: Synthesis and in vitro evaluation of potential anti-proliferative agents

Arabian Journal of Chemistry, 2019
In view of known antitumor and cytotoxic properties of 2- and 3-pyridinyl substituted indole derivatives, respectively a number of isomeric N-pyridinyl substituted indoles and their analogs were synthesized as potential cytotoxic agents.
E. Sailaja, S. Bhavani, D. Rambabu, M.V. Basaveswara Rao, Manojit Pal   +4 more
doaj  

De Quatuor quæ in Novo Testamento de Cœna Domini Extant Relationum Natura ac Indole. Carolus Gulielmus Rudolphus Schaefer [PDF]

, 1898
E. P. Gould
openalex   +1 more source

Studies of Tryptophans in Membrane- Spanning WALP Peptides by Deuterium NMR Spectroscopy [PDF]

, 2000
WALP pep tides of sequence acetyl-Gly-Trp-Trp-(Leu-Ala)-Trp-Trp-Ala-ethanolamine insert into lipid bilayers as membrane-spanning a-helices and modulate the lipid phase behavior as functions of n and the lipid acyl chain length.
Reed, Nichole
core   +2 more sources