19182-97-9Relevant academic research and scientific papers
Light-Controlled Tyrosine Nitration of Proteins
Long, Tengfang,Liu, Lei,Tao, Youqi,Zhang, Wanli,Quan, Jiale,Zheng, Jie,Hegemann, Julian D.,Uesugi, Motonari,Yao, Wenbing,Tian, Hong,Wang, Huan
supporting information, p. 13414 - 13422 (2021/05/12)
Tyrosine nitration of proteins is one of the most important oxidative post-translational modifications in vivo. A major obstacle for its biochemical and physiological studies is the lack of efficient and chemoselective protein tyrosine nitration reagents. Herein, we report a generalizable strategy for light-controlled protein tyrosine nitration by employing biocompatible dinitroimidazole reagents. Upon 390 nm irradiation, dinitroimidazoles efficiently convert tyrosine residues into 3-nitrotyrosine residues in peptides and proteins with fast kinetics and high chemoselectivity under neutral aqueous buffer conditions. The incorporation of 3-nitrotyrosine residues enhances the thermostability of lasso peptide natural products and endows murine tumor necrosis factor-α with strong immunogenicity to break self-tolerance. The light-controlled time resolution of this method allows the investigation of the impact of tyrosine nitration on the self-assembly behavior of α-synuclein.
Investigating the microwave-accelerated Claisen rearrangement of allyl aryl ethers: Scope of the catalysts, solvents, temperatures, and substrates
Hui, Zi,Jiang, Songwei,Qi, Xiang,Ye, Xiang-Yang,Xie, Tian
supporting information, (2020/05/18)
The microwave-accelerated Claisen rearrangement of allyl aryl ethers was investigated, in order to gain insight into the scope of the catalysts, solvents, temperatures, and substrates. Among the catalysts examined, phosphomolybdic acid (PMA) was found to greatly accelerate the reaction in NMP, at temperatures ranging from 220 to 300 °C. This method was found to be useful for preparing several intermediates previously reported in the literature using precious metal catalysts such as Au(I), Ag(I), and Pt(II). Additionally, substrates bearing bromo and nitro groups on the aryl portion required careful tailoring of the reaction conditions to avoid complex product profiles.
Synthesis and in vitro growth inhibition of 2-allylphenol derivatives against Phythopthora cinnamomi rands
Olea, Andrés F.,Espinoza, Luis,Sedan, Claudia,Thomas, Mario,Martínez, Rolando,Mellado, Marco,Carrasco, Héctor,Díaz, Katy
, (2019/11/28)
Phytophthora cinnamomi is a phytopathogen that causes extensive damage in different crops, and therefore, produces important economic losses all around the world. Chemical fungicides are a key factor for the control of this disease. However, ecological an
Flow Synthesis in Hot Water: Synthesis of the Atypical Antipsychotic Iloperidone
Hartwig, Jan,Kirschning, Andreas
supporting information, p. 3044 - 3052 (2016/03/23)
Inductively heated steel reactors continuously perform organic transformations in water under high temperature conditions, utilizing the unique physiochemical properties of water at subcritical conditions. We demonstrated the power of this set-up in the continuous synthesis of the atypical antipsychotic drug iloperidone, in which we performed four out of five steps under aqueous conditions.
Investigation on Claisen rearrangement of allyl phenyl ethers in near-critical water
Xiao, Shangyou,He, Yi,Xu, Guang,Liu, Qi
, p. 3299 - 3305 (2015/06/08)
Catalyst-free Clasien rearrangement of allyl phenyl ethers were investigated in near-critical water. The effects on the reaction in near-critical water and conventional conditions were compared. The results demonstrate that near-critical water could greatly accelerate the Claisen rearrangement of allyl phenyl ethers. This process is simple, fast, efficient and environmentally benign.
8-[2-(4-Aryl-1-piperazinyl)ethyl]-2H-1,4-benzoxazin-3(4H)-ones: Dual-acting 5-HT1 receptor antagonists and serotonin reuptake inhibitors-Part II
Bromidge, Steven M.,Bertani, Barbara,Borriello, Manuela,Bozzoli, Andrea,Faedo, Stefania,Gianotti, Massimo,Gordon, Laurie J.,Hill, Matthew,Zucchelli, Valeria,Watson, Jeannette M.,Zonzini, Laura
scheme or table, p. 2338 - 2342 (2009/12/31)
8-[2-(4-Aryl-1-piperazinyl)ethyl]-2H-1,4-benzoxazin-3(4H)-ones have been identified as highly potent 5-HT1A/B/D receptor antagonists with and without additional SerT activity and a high degree of selectivity over hERG potassium channels. Modula
FUSED TRICYCLIC DERIVATIVES FOR THE TREATMENT OF PSYCHOTIC DISORDERS
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Page/Page column 41, (2010/10/20)
Compounds of formula (I) wherein R1, R2, X, A, Y, B, Z1, Q, p, r and s are defined in the specification for treating inter alia psychotic disorders, depressive disorders, anxiety disorders and sexual dysfunctions.
An isomerization-ring-closing metathesis strategy for the synthesis of substituted benzofurans
Van Otterlo, Willem A.L.,Morgans, Garreth L.,Madeley, Lee G.,Kuzvidza, Samuel,Moleele, Simon S.,Thornton, Natalie,De Koning, Charles B.
, p. 7746 - 7755 (2007/10/03)
Twelve substituted benzofurans were synthesized from their corresponding substituted 1-allyl-2-allyloxybenzenes using ruthenium-mediated C- and O-allyl isomerization followed by ring-closing metathesis.
Ring-closing metathesis for the synthesis of 2H- and 4H-chromenes
Van Otterlo, Willem A.L.,Ngidi, E. Lindani,Kuzvidza, Samuel,Morgans, Garreth L.,Moleele, Simon S.,De Koning, Charles B.
, p. 9996 - 10006 (2007/10/03)
Six 4H-chromenes were synthesized from substituted phenols using vinylstannylation and ring-closing metathesis (RCM) as key steps. In addition, a different approach involving amongst other steps, an aryl allyl isomerization and RCM afforded a set of seven 2H-chromenes from phenolic precursors.
Studies towards the total synthesis of Sch 56036; isoquinolinone synthesis and the synthesis of phenanthrenes
Walker, Edward R.,Leung, Shing Y.,Barrett, Anthony G.M.
, p. 6537 - 6540 (2007/10/03)
The isoquinolinone hemisphere of Sch 56036 has been prepared using a modified Pomeranz-Fritsch reaction and the synthesis of the phenanthrene core has been modelled via a Suzuki coupling and subsequent ring closing metathesis.
