73655-51-3Relevant academic research and scientific papers
5,8-DISUBSTITUTED-[1,2,4]TRIAZOLO[1,5-A]PYRIDINYL AND 5,8-DISUBSTITUTED-IMIDAZO[1,2-A]PYRIDINE DERIVATIVES USEFUL AS INHIBITORS OF ENTEROPEPTIDASE
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, (2021/01/29)
The present invention is directed to 5,8-disubstituted-[1,2,4]triazolo[1,5- a]pyridinyl and 5,8-disubstituted-imidazo[1,2-a]pyridine derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions modulated by the enteropeptidase enzyme.
Discovery of a novel series of guanidinebenzoates as gut-restricted enteropeptidase and trypsin dual inhibitors for the treatment of metabolic syndrome
Zhang, Xuqing,Zhu, Bin,Sun, Weimei,Wang, Mina,Albarazanji, Kamal,Ghosh, Brahma,Cummings, Maxwell,Lenhard, James,Leonard, James,Macielag, Mark,Lanter, James
, (2021/03/22)
A novel series of guanidinebenzoate enteropeptidase and trypsin dual inhibitors has been discovered and SAR studies were conducted. Optimization was focused on improving properties for gut restriction, including increased aqueous solubility, lower cellular permeability, and reduced oral bioavailability. Lead compounds were identified with efficacy in a mouse fecal protein excretion study.
Singlet Oxygen Generation from a Water-Soluble Hypervalent Iodine(V) Reagent AIBX and H2O2: An Access to Artemisinin
Hu, Ze-Nan,Shen, Hui-Jie,Zhang, Chi
supporting information, (2021/06/21)
Herein, we report an efficient method for the chemical generation of 1O2 by treatment of H2O2 with AIBX, a highly water-soluble, bench-stable, recyclable hypervalent iodine(V) reagent developed by our group. The generation of 1O2 was confirmed by the following results: (1) capture of 1O2 with the sodium salt of anthracene-9,10-bis(ethanesulfonate) produced the corresponding endoperoxide and (2) TEMPO (2,2,6,6-tetramethyl-1-piperidinyloxy) produced by the oxidation of 2,2,6,6-tetramethylpiperidine with 1O2 generated using the AIBX/H2O2 system was detected by electron spin resonance spectroscopy. To illustrate the potential utility of this method for organic synthesis, we used the AIBX/H2O2 system to perform typical reactions of 1O2: [2 + 2]/[4 + 2] cycloadditions, Schenck ene reactions, and heteroatom oxidation reactions, which afforded the corresponding products in high yields. Moreover, we used the method to synthesize the antimalarial drug artemisinin. Finally, we demonstrated that AIBX could be regenerated after the reaction by means of a workup involving extraction and removal of water to obtain a precursor of AIBX, which could then be re-oxidized.
Design, synthesis, structure, and dehydrogenation reactivity of a water soluble o-iodoxybenzoic acid derivative bearing a trimethylammonium group
Cui, Li-Qian,Dong, Zhi-Lei,Liu, Kai,Zhang, Chi
, p. 6488 - 6491 (2012/02/02)
5-Trimethylammonio-1, 3-dioxo-1, 3-dihydro-1λ5-benzo[d][1, 2]iodoxol-1-ol anion (AIBX 1a), an o-iodoxybenzoic acid (IBX) derivative having the trimethylammonium moiety on its phenyl ring, possesses very good solubility in water and distinct oxidative properties from IBX, which is demonstrated in the oxidation of various β-keto esters to the corresponding dehydrogenated products using water as cosolvent. The regeneration of AIBX 1a can be easily realized from the reaction mixture due to its good water solubility.2011 American Chemical Society.
SYNTHESIS OF 4-(N-ACETYL-L-TYROSYL)AMINO-2-IODOBENZOIC ACID
Protiva, Jiri,Krecek, Vaclav,Maca, Bohumil,Urban, Jiri,Budesinsky, Milos,Prochazka, Milos
, p. 1012 - 1018 (2007/10/02)
The title compound was prepared by a three-step synthesis from diacetyltyrosine (XV) and 4-amino-2-iodobenzoic acid (I).Syntheses of acid I and 4-amino-3-iodobenzoic acid (II) have been revised and modified. 1H and 13C NMR spectra of the synthesized compo
Kinetics of Iodination of Some Substituted Benzoic Acids by N-Iodosuccinimide
Radhakrishnamurti, P. S.,Panda, B. K.
, p. 770 - 773 (2007/10/02)
Iodination of o-amino-, p-amino-, o-hydroxy-, p-hydroxy, o-acetylamino-, p-acetylamino-, o-methoxy- and p-methoxy-benzoic acids by N-iodosuccinimide (NIS) in mixtures of acetic acid and perchloric acid follows first order kinetics with respect to the halo
