Results 51 to 60 of about 426,028 (222)

Total synthesis of jiadifenolide. [PDF]

, 2014
As a potent neurotrophic agent, the sesquiterpenoid jiadifenolide represents a valuable small-molecule lead for the potential therapeutic treatment of neurodegenerative diseases.
Dalby, Stephen M, Paterson, Ian, Xuan, Mengyang   +2 more
core   +2 more sources

Transannular O‐Heterocyclization Reactions of Cyclododeca‐1,5,9‐triene Derivatives: A New Concept for the Preparation of Key Intermediates for Total Syntheses of Annonaceous Acetogenins

Helvetica Chimica Acta, EarlyView.
Four stereogenic centers are formed diastereoselectively in one step from a cyclic (E,E)‐1,5‐diene system using an electrophilic addition reaction. Subsequent ozonolytic cleavage of the intact Z‐double bond, followed by intramolecular nucleophilic substitution, yields an octahydroterfurandione with a threo,cis,threo configuration, an arrangement found ...
Holger Schimanski, André Streiter, Micheline May, Oliver Mimkes, Johannes van Kempen, Constantin Daniliuc, Günter Haufe   +6 more
wiley   +1 more source

Macrocyclization by Nickel-Catalyzed, Ester-Promoted, Epoxide-Alkyne Reductive Coupling: Total Synthesis of (−)-Gloeosporone [PDF]

, 2009
Ringing the changes: The total synthesis of the title compound centers around a novel strategy that employs a nickel(0)–phosphine complex and triethyl borane in an efficient closure of a 14-membered ring through C--C bond formation (see scheme; cod ...
Adam, Bredereck, Carling, Chaulagain, Colby, Colby, Curtis, Feldman, Fraunhoffer, Fu, Fürstner, Fürstner, Fürstner, Gradillas, Knapp-Reed, Lax, Ley, Matsushita, Meyer, Meyer, Miller, Miller, Molinaro, Namba, Parenty, Peng, Rozema, Schaus, Schreiber, Seebach, Sharma, Takahashi, Takano, Tokunaga, Wasserman, Wasserman, Woodin   +36 more
core   +1 more source

Regenerated cellulose from N-methylmorpholine N-oxide solutions as a coating agent for paper materials

Cellulose, 2018
The objective of the presented research was to determine the influence of cellulose coating, obtained from the cellulose solution in N-Methylmorpholine N-oxide (NMMO), on the structural and mechanical properties of paper.
Marta Krysztof, K. Olejnik, P. Kulpiński, A. Stanisławska, Svitlana Khadzhynova   +4 more
semanticscholar   +1 more source

Molecular basis for a pore block of Tentonin 3 expressed in HEK293 cells by a conopeptide, NMB‐1

British Journal of Pharmacology, EarlyView.
Background and Purpose Tentonin 3 (TTN3/TMEM150C) is a mechanosensitive ion channel that plays critical roles in mechanotransduction processes. TTN3 forms a tetramer with a predicted rectangular shape and a central pore. A conotoxin ρ‐TIA and its synthetic analog, noxious mechanosensation blocker 1 (NMB‐1), were initially developed to inhibit slowly ...
Sujin Lim, Junhyuk Woo, Sungmin Pak, Joonho Paik, Gyu‐Sang Hong, Ji Hun Wi, Sanghee Lee, Cristina Fenollar‐Ferrer, Kyungreem Han, Young Kee Shin, Uhtaek Oh   +10 more
wiley   +1 more source

Toward the total synthesis of spirastrellolide A. Part 3: Intelligence gathering and preparation of a ring-expanded analogue [PDF]

, 2007
Different methods for the formation of the C.25–C.26 bond of spirastrellolide A (1) are evaluated that might qualify for the end game of the projected total synthesis, with emphasis on metathetic ways to forge the macrocyclic ...
Ceccon, J., Fasching, B., Fenster, M., Fürstner, A., Godbout, C., O'Neil, G.   +5 more
core   +2 more sources

Effects of Pretreatment of Single and Mixed Lignocellulosic Substrates on Production of Endoglucanase by Bacillus aerius S5.2

BioResources, 2016
A mixed substrate (MS) comprising oil palm empty fruit bunch (EFB), oil palm frond (OPF), and rice husk (RH) was evaluated for endoglucanase production by Bacillus aerius S5.2. Effects of sulphuric acid, sodium hydroxide, N-methylmorpholine-N-oxide (NMMO)
Mushafau Adebayo Oke, Mofoluwake M. Ishola, Mohammad J. Taherzadeh, Mohamad Suffian Mohamad Annuar, Khanom Simarani   +4 more
doaj   +1 more source

Photochemical Approaches to Complex Chemotypes: Applications in Natural Product Synthesis. [PDF]

, 2016
The use of photochemical transformations is a powerful strategy that allows for the formation of a high degree of molecular complexity from relatively simple building blocks in a single step. A central feature of all light-promoted transformations is the
Kärkäs, Markus D., Porco, John A., Stephenson, Corey R.J.   +2 more
core   +2 more sources

Preparation of cellulose aerogels from ionic liquid solutions for supercritical impregnation of phytol [PDF]

, 2017
Producción CientíficaThe use of natural polysaccharides is especially attractive to the pharmaceutical industry because of their stability, availability, renewability and low toxicity.
Bermejo Roda, Maria Dolores, Cocero Alonso, María José, Knez, Zeljko, Lopes, Joana, Martín Martínez, Ángel, Mustapa, Ana Najwa Binti, Novak, Zoran, Pantic, Milica   +7 more
core   +2 more sources

Autonomous Spatiotemporal Regulation of Reversible Hydrogel Actuators by Chemical Reaction Networks

Advanced Materials, Volume 38, Issue 7, 2 February 2026.
Hydrogel actuators with reversible response to thiols are developed using reversible binding of thiols to Michael acceptors. Autonomous spatiotemporal regulation of reversible movement of these hydrogels is achieved using thiol‐based chemical reaction networks containing both positive and negative feedback.
Fan Liao, Ajith George, Xiao‐Meng Sui, Sergey N. Semenov   +3 more
wiley   +1 more source