Results 51 to 60 of about 7,968 (196)

Mitochondria targeting molecular transporters: synthesis, lipophilic effect, and ionic complex

open access: yesDrug Delivery, 2022
As mitochondria are potential therapeutic targeting sites for the treatment of human diseases, delivering cytotoxic drugs, antioxidants, and imaging molecules to mitochondria can provide new therapeutic opportunities.
Akula S. N. Murthy   +6 more
doaj   +1 more source

Biguanide-, imine-, and guanidine-based networks as catalysts for transesterification of vegetable oil [PDF]

open access: yes, 2010
Polycationic systems based on poly(hexamethylene biguanide) (PHMBG), branched polyethyleneimine (PEI) and poly(N-vinylguanidine) (PVG) have been evaluated as heterogeneous catalysts for the transesterification of sunflower oil by methanol.
Alvarez, Michael   +4 more
core   +1 more source

Synthesis of an arginine mimic for an antifungal octapeptide library : this thesis is presented in partial fulfilment of the requirements for the degree of Master of Science in Chemistry at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 2008
A family of bioactive antifungal octapeptides has been established¹⁻³. The template for this library is based on peptides composed of two predefined amino acids, three arginines, and three unknown components. The arginine contains a guanidino group (pKa =
Sun, Hao
core  

Transesterification of vegetable oils: a review [PDF]

open access: yes, 2015
The transesterification of vegetable oils with methanol as well as the main uses of the fatty acid methyl esters are reviewed. The general aspects of this process and the applicability of different types of catalysts (acids, alkaline metal hydroxides ...
Schuchardt, Ulf   +2 more
core   +1 more source

Guanidine Chemistry

open access: yesChemical and Pharmaceutical Bulletin, 2010
Guanidines are categorized as strong organobases; however, their catalytic utility in organic synthesis has not been discussed thoroughly. The author's group has extensively and systematically studied their potential ability focusing on: 1) modified guanidines as chiral auxiliaries; 2) guanidinium ylides for aziridine formation; 3) the affinity of ...
openaire   +3 more sources

Catalisadores heterogêneos para a produção de monoésteres graxos (biodiesel)

open access: yesQuímica Nova, 2011
The recent increase in the world biodiesel demand, along with the need to reduce costs while improving the environmental sustainability of the entire biodiesel production chain, have led to the search for heterogeneous catalysts that would be efficient ...
Claudiney Soares Cordeiro   +3 more
doaj   +1 more source

Synthesis and Antifungal Activity of Some New Guanidines [PDF]

open access: yes, 2014
The synthesis of some N-subsituted -N'-aryl-N"-ethyl/benzyl guanidines (II) and (III) and their precurser thiocarbamides (I) has been carried out. All these compounds have been screened in vitro for their antifungal activity against Helminthosporium ...
Joshi, P. C., Joshi, Puran Chandra
core   +2 more sources

Nachweis von Guanidin. [PDF]

open access: yesHoppe-Seyler´s Zeitschrift für physiologische Chemie, 1906
n ...
openaire   +3 more sources

Recyclization of Maleimides by Binucleophiles as a General Approach for Building Hydrogenated Heterocyclic Systems

open access: yesMolecules, 2022
The building of heterocyclic systems containing hydrogenated fragments is an important step towards the creation of biologically-active compounds with a wide spectrum of pharmacological activity.
Dmitriy Yu. Vandyshev   +1 more
doaj   +1 more source

Desenvolvimento de abordagem objetivando a síntese da 3-desidroxi-4-metoxi-tubastrina Development of an approach for the synthesis of 3-dehydroxy-4methoxy tubastrine

open access: yesQuímica Nova, 2007
We report the synthesis of amino(2-hydroxy-2-(4-methoxyphenyl)ethylamino)methaniminium (14) as a direct precursor of a tubastrine derivative (3-dehydroxy-4-methoxytubastrine). The synthetic steps involved functional group interconversions starting from 1-
Kelly de Oliveira Santos   +2 more
doaj   +1 more source

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