29681-43-4Relevant articles and documents
Partial reduction of pyridinium salts as a versatile route to dihydropyridones
Donohoe, Timothy J.,Johnson, Dale J.,Mace, Laura H.,Bamford, Mark J.,Ichihara, Osamu
, p. 435 - 437 (2005)
(Chemical Equation Presented) The addition of two electrons to a pyridinium salt turns it into a nucleophile. The intermediate generated by the reduction of such salts can be reacted successfully with a range of different electrophiles (acids, alkyl halid
Design of coordination interaction of Zn(II) complex with oligo-aspartate peptide to afford a high-affinity tag-probe pair
Fuchida, Hirokazu,Tabata, Shigekazu,Shindo, Naoya,Takashima, Ippei,Leng, Qiao,Hatsuyama, Yuji,Hamachi, Itaru,Ojida, Akio
supporting information, p. 784 - 791 (2015/06/25)
A complementary recognition pair consisting of a genetically encodable peptide tag and a small molecular probe isa powerful tool to specifically label and manipulate a protein ofinterest under biological conditions. In this study, we report the redesign of a tag-probe pair comprising an oligo-aspartate peptide tag (such as DDDD) and a binuclear zinc complex. Isothermal-titration calorimetry screening of binding between the series of peptides and zinc complexes revealed that the binding affinity was largely influenced by subtle changes of the ligand structure of the probe. However, the binding was tolerant to differences of the tag peptide sequence. Of those tested, a pair containing a peptide tag (DDAADD) and a binuclear zinc complex possessing 4-chloropyridines (3-2Zn(II)) showed the strongest binding affinity (Ka = 3.88 × 105 M-1), which was about 10-fold larger than the conventional pair of D4-peptide tag (DDDD) and 1-2Zn(II) containing nonsubstituted pyridines (Ka = 3.73 × 104 M-1). The strong binding of this new complementary recognition pair enabled the rapid covalent labeling of a tag-fused maltose binding protein with a fluorescent zinc complex, demonstrating its potential utility in protein analysis.
Scaffold-hopping strategy: Synthesis and biological evaluation of 5,6-fused bicyclic heteroaromatics to identify orally bioavailable anticancer agents
Tung, Yen-Shih,Coumar, Mohane Selvaraj,Wu, Yu-Shan,Shiao, Hui-Yi,Chang, Jang-Yang,Liou, Jing-Ping,Shukla, Paritosh,Chang, Chun-Wei,Chang, Chi-Yen,Kuo, Ching-Chuan,Yeh, Teng-Kuang,Lin, Chin-Yu,Wu, Jian-Sung,Wu, Su-Ying,Liao, Chun-Chen,Hsieh, Hsing-Pang
supporting information; scheme or table, p. 3076 - 3080 (2011/06/25)
Utilizing scaffold-hopping drug-design strategy, we sought to identify a backup drug candidate for BPR0L075 (1), an indole-based anticancer agent. For this purpose, 5,6-fused bicyclic heteroaromatic scaffolds were designed and synthesized through shufflin
