64046-48-6Relevant academic research and scientific papers
Discovery of a novel 2,5-dihydroxycinnamic acid-based 5-lipoxygenase inhibitor that induces apoptosis and may impair autophagic flux in RCC4 renal cancer cells
Selka, Ayyoub,Doiron, Jérémie A.,Lyons, Pierre,Dastous, Sonia,Chiasson, Alison,Cormier, Marc,Turcotte, Sandra,Surette, Marc E.,Touaibia, Mohamed
, p. 347 - 357 (2019)
The inhibition of 5-lipoxygenase (5-LO), the key enzyme for the biosynthesis of leukotrienes (LTs), has generated increasing enthusiasm as anti-inflammatory and antitumor strategies in recent years. Based on our previous studies, we synthesized a series of dihydroxycinnamic acid-based analogs that might be 5-LO inhibitors. LTs biosynthesis inhibition in HEK293 cells and polymorphonuclear leukocytes (PMNL) was measured and antitumor activities were investigated in Renal Cell Carcinoma (RCC). Results showed that the 2,5-dihydroxycinnamic acid phenethyl ester (10b) was the best 5-LO inhibitor and was 7-fold more potent than Zileuton (1), the only clinically approved 5-LO inhibitor. 2,5-Dihydroxy substitution was more favorable to 5-LO inhibition since compound 10b is twice as active as CAPE (2) which is a 3,4-dihydroxylcinnamic acid ester. Meanwhile, 10b reduced the cell viability of renal cancer cells and was more selective toward RCC4 and 786.0 cells which are deficient for the Von Hippel-Lindau (VHL) tumor suppressor gene. As to the underlying cell-death mechanisms, 10b induced apoptosis in VHL-deficient RCC4 cells. Also, increases in LC3B and p62 expression suggest a blockage of the autophagic flux in RCC in response to 10b.
Tf2O/Amide adducts: Versatile reagents for the synthesis of imidates and amidines
Sforza, Stefano,Dossena, Arnaldo,Corradini, Roberto,Virgili, Eliana,Marchelli, Rosangela
, p. 711 - 714 (2007/10/03)
The Vilsmeier reagents generated from tertiary and secondary aliphatic and aromatic amides and trifluoromethanesulfonic anhydride (Tf2O) reacted with different nucleophiles (ROH, RSH, RNH2) affording the relative iminium and amidinium salts. The former, stable at room temperature, were easily transformed into the corresponding esters or O-alkyl thioesters by treatment with OH- or SH-.
On the conversion of azides to diazo compounds
Feigelson, Gregg B.
, p. 1129 - 1130 (2007/10/03)
The ability to convert a suitably disposed azide group into the corresponding diazo compound has been demonstrated.
FACILE METHOD FOR THE ACYLATION OF ALCOHOLS AND AMIDES BY THE USE OF 1,1'-DIMETHYLSTANNOCENE AND ACYL CHLORIDES
Mukaiyama, Teruaki,Ichikawa, Junji,Asami, Masatoshi
, p. 293 - 296 (2007/10/02)
Acylation of alcohols and amides was effected under mild conditions by the use of 1,1'-dimethylstannocene and acyl chlorides, giving the corresponding esters and imides in good to excellent yields.
