23363-91-9Relevant articles and documents
Hydrogen bond organocatalysis of benzotriazole in transamidation of carboxamides with amines
Nguyen, Thanh Binh,Ermolenko, Ludmila,Dau, Marie-Elise Tran Huu,Al-Mourabit, Ali
, p. 403 - 416 (2014/01/17)
A new method of transamidation of carboxamides with amines catalyzed by benzotriazole has been developed.
Alkyl sulfonyl derivatized PAMAM-G2 dendrimers as nonviral gene delivery vectors with improved transfection efficiencies
Morales-Sanfrutos, Julia,Megia-Fernandez, Alicia,Hernandez-Mateo, Fernando,Giron-Gonzalez, Ma Dolores,Salto-Gonzalez, Rafael,Santoyo-Gonzalez, Francisco
experimental part, p. 851 - 864 (2011/03/22)
Amphiphilic dendrimer-based gene delivery vectors bearing peripheral alkyl sulfonyl hydrophobic tails were constructed using low-generation PAMAM-G2 as the core and functionalized by means of the aza-Michael type addition of its primary amino groups to vinylsulfone derivatives as an efficient tool for surface engineering. While the unmodified PAMAM-G2 was unable to efficiently transfect eukaryotic cells, functionalized PAMAM-G2 dendrimers were able to bind DNA at low N/P ratios, protect DNA from digestion with DNase I and showed high transfection efficiencies and low cytotoxicity. Dendrimers with a C18 alkyl chain produced transfection efficiencies up to 3.1 fold higher than LipofectAMINE 2000 in CHO-k1 cells. The dendriplexes based in functionalized PAMAM-G2 also showed the ability to retain their transfection properties in the presence of serum and the ability to transfect different eukaryotic cell lines such as Neuro-2A and RAW 264.7. Taking advantage of the vinylsulfone chemistry, fluorescent PAMAM-G2 derivatives of these vectors were prepared as molecular probes to determine cellular uptake and internalization through a clathrin-independent mechanism.
Dipeptide alcohol-based inhibitors of eukaryotic DNA polymerase α
Kuriyama, Isoko,Asano, Naoki,Kato, Ikuo,Ikeda, Kyoko,Takemura, Masaharu,Yoshida, Hiromi,Sakaguchi, Kengo,Mizushina, Yoshiyuki
, p. 2187 - 2196 (2007/10/03)
We reported previously that a novel dipeptide alcohol, l- homoserylaminoethanol (Hse-Gly-ol), is a selective inhibitor of eukaryotic DNA polymerase ε (pol ε) [Bioorg. Med. Chem. 2004, 12, 957-962]. The discovery suggests that the dipeptide structure could