Results 31 to 40 of about 49,972 (158)

ATP dependent rotational motion of group II chaperonin observed by X-ray single molecule tracking. [PDF]

PLoS ONE, 2013
Group II chaperonins play important roles in protein homeostasis in the eukaryotic cytosol and in Archaea. These proteins assist in the folding of nascent polypeptides and also refold unfolded proteins in an ATP-dependent manner.
Hiroshi Sekiguchi, Ayumi Nakagawa, Kazuki Moriya, Koki Makabe, Kouhei Ichiyanagi, Shunsuke Nozawa, Tokushi Sato, Shin-ichi Adachi, Kunihiro Kuwajima, Masafumi Yohda, Yuji C Sasaki   +10 more
doaj   +1 more source

Synthesis and quantitative structure–activity relationship study of substituted imidazophosphor ester based tetrazolo[1,5-b]pyridazines as antinociceptive/anti-inflammatory agents

Beilstein Journal of Organic Chemistry, 2013
A high-yielding general synthesis of imidazophosphor ester based tetrazolo[1,5-b]pyridazines is described. A conjugated reaction between 3,6-diazidopyridazine and different types of phosphonyl carbanion reagents followed by intramolecular cyclization ...
Wafaa M. Abdou, Neven A. Ganoub, Eman Sabry   +2 more
doaj   +1 more source

Microwave-Assisted Stereoselective Heterocyclization to Novel Ring d-fused Arylpyrazolines in the Estrone Series

Molecules, 2019
Microwave-assisted syntheses of novel ring d-condensed 2-pyrazolines in the estrone series were efficiently carried out from steroidal α,β-enones and hydrazine derivatives. The ring-closure reaction of 16-benzylidene estrone 3-methyl ether with
Gergő Mótyán, Barnabás Molnár, János Wölfling, Éva Frank   +3 more
doaj   +1 more source

A case report on ventrolateral herniorrhaphy in sheep: The novel way of using vest‐over‐pants closure technique

Veterinary Medicine and Science, 2021
Objectives To describe the surgical management of ventrolateral hernias by using the vest‐over‐pants closure technique. Animals On two local breed sheep that were kept under an extensive management system. Study design Case report.
Jiregna Dugassa Kitessa, Abebe Fromsa Merga, Abebe Wirtu Afata   +2 more
doaj   +1 more source

2-[(5-Chloro-2-hydroxybenzylidene)amino]-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one

Acta Crystallographica Section E, 2010
The title compound, C35H35ClN4O3, resulted from a spirolactam ring closure of rhodamine B dye. The xanthene ring system is approximately planar [r.m.s. deviation = 0.050 (9) Å for the xanthene ring].
Zhi-hong Xu, Wei-yun Guo, Bo-wei Su, Xu-Ke Shen, Feng-ling Yang   +4 more
doaj   +1 more source

Metátese de olefinas aplicada ao fechamento de anéis: uma ferramenta poderosa para a síntese de macrociclos naturais Ring-closing olefin metathesis: a powerful tool for the synthesis of natural macrocycles

Química Nova, 2008
For a quarter of a century, metathesis has become indispensable for the synthesis of natural and non-natural products, particularly of biologically active compounds.
Anderson Rouge dos Santos, Carlos Roland Kaiser, Jean-Pierre Férézou   +2 more
doaj   +1 more source

TECHNIQUES D'ASSEMBLAGE D'ISOINDOLINONES STRUCTURELLEMENT AMENAGEES.APPLICATIONS ET DEVELOPPEMENTS

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2010
A number of conceptually new synthetic approaches to the elaboration of constitutionally diverse isoindolinones have been disclosed. The main objective was to develop synthetic tactics for the creation of the lactam unit that would allow for ...
Pierre Grandclaudon, Axel Couture
doaj  

Dimerisation, rhodium complex formation and rearrangements of N-heterocyclic carbenes of indazoles

Beilstein Journal of Organic Chemistry, 2014
Deprotonation of indazolium salts at low temperatures gives N-heterocyclic carbenes of indazoles (indazol-3-ylidenes) which can be trapped as rhodium complexes (X-ray analysis).
Zong Guan, Jan C. Namyslo, Martin H. H. Drafz, Martin Nieger, Andreas Schmidt   +4 more
doaj   +1 more source

Approach to the A-B Ring System of Forskolin through Biotransformation of Toluene

Molecules, 2000
In the present work, we will intend to show that diol I, microbially derived from toluene using Pseudomonas putida 39D, is a suitable synthon for the synthesis of the A-B ring system of forskolin.
G. García, G. Seoane, V. Schapiro
doaj   +1 more source

Cyclization Reactions Involving 2-Aminoarenetellurols and Derivatives of α,β-Unsaturated Carboxylic Acids

Heteroatom Chemistry, 2021
The reductive cyclization of arenetellurols carrying α,β-unsaturated amide functionalities in the ortho position was investigated. Conceptually, such compounds can form 1,3-tellurazoles without the involvement of the unsaturation in the ring closure ...
Jayna A. Patel, Aundrea M. Lee, Donna V. Franklin, Frank R. Fronczek, Thomas Junk   +4 more
doaj   +1 more source