35461-99-5Relevant academic research and scientific papers
Synthesis and activity of isoleucine sulfonamide derivatives as novel botulinum neurotoxin serotype A light chain inhibitors
Amezcua, Martin,Dao, Wendy T.,Ku, Alex,Lien, Thanh,Palomino, Alejandra Y.,Rodriguez-Beltran, Sandra L.,Salzameda, Nicholas T.,Thompson, Jordan C.
, (2020/07/31)
The botulinum neurotoxin (BoNT) is the most lethal protein known to man causing the deadly disease botulinum. The neurotoxin, composed of a heavy (HC) and light (LC) chain, work in concert to cause muscle paralysis. A therapeutic strategy to treat individuals infected with the neurotoxin is inhibiting the catalytic activity of the BoNT LC. We report the synthesis, inhibition study and computational docking analysis of novel small molecule BoNT/A LC inhibitors. A structure activity relationship study resulted in the discovery of D-isoleucine functionalized with a hydroxamic acid on the C-terminal and a biphenyl with chlorine at C- 2 connected by a sulfonamide linker at the N-terminus. This compound has a measured IC50 of 0.587 μM for the BoNT/A LC. Computational docking analysis indicates the sulfonamide linker adopts a geometry that is advantageous for binding to the BoNT LC active site. In addition, Arg363 is predicted to be involved in key binding interactions with the scaffold in this study.
Carbazole based Electron Donor Acceptor (EDA) catalysis for the synthesis of biaryl and aryl-heteroaryl compounds
Annes, Sesuraj Babiola,Ramesh, Subburethinam,Saravanan, Subramanian,Saritha, Rajendhiran
supporting information, p. 2510 - 2515 (2020/04/15)
A highly regioselective, carbazole based Electron Donor Acceptor (EDA) catalyzed synthesis of biaryl and aryl-heteroaryl compounds is described. Various indole and carbazole derivatives were screened for the Homolytic Aromatic Substitution (HAS) reaction. Tetrahydrocarbazole (THC) was very efficient for the HAS transformation and proceeded via a complex formation between diazonium salt and electron rich tetrahydrocarbazole. The UV-Vis spectroscopy technique has been used to confirm the complex formation. The in situ generated EDA complex even in a catalytic amount is found to be efficient for the Single Electron Transfer (SET) process without any photoactivation. Biaryl compounds, 2-phenylfuran, 2-phenylthiophene, and 2-phenylpyrrole and bioactive compounds such as dantrolene and canagliflozin have been synthesized in moderate to excellent yields.
Ascorbic acid as an initiator for the direct C-H arylation of (hetero)arenes with anilines nitrosated in situ
Crisostomo, Fernando Pinacho,Martin, Tomas,Carrillo, Romen
supporting information, p. 2181 - 2185 (2014/03/21)
Ascorbic acid (vitaminC) has been used as a radical initiator in a metal-free direct C-H arylation of (hetero)arenes. Starting from an aniline, the corresponding arenediazonium ion is generated in situ and immediately reduced by vitaminC to an aryl radical that undergoes a homolytic aromatic substitution with a (hetero)arene. Notably, neither heating nor irradiation is required. This procedure is mild, operationally simple, and constitutes a greener approach to arylation. Copyright
AMIDE DERIVATIVES
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Page 54, (2010/02/06)
The invention concerns amide derivatives of Formula (Ia) wherein X is -NHCO- or -CONH-; m is 0-3; R1 is a group such as hydroxy, halogeno, trifluoromethyl, cyano, mercapto, nitro, amino, carboxy and carbamoyl; n is 0-2; R2 is a group
The stille cross coupling reactions on solid support. Link to solution phase directed ortho metalation. An ester linker approach to styryl, biaryl and heterobiaryl carboxylic acids
Chamoin, Sylvie,Houldsworth, Stephen,Snieckus, Victor
, p. 4175 - 4178 (2007/10/03)
The synthesis of the titled compounds by Stille cross coupling on Merrifield resin - linked halo benzoates with stannanes followed by LiOH hydrolysis is reported.
