791823-69-3Relevant academic research and scientific papers
Design and synthesis of novel 7-heterocycle-6-trifluoromethyl-3- oxoquinoxaline-2-carboxylic acids bearing a substituted phenyl group as superior AMPA receptor antagonists with good physicochemical properties
Takano, Yasuo,Shiga, Futoshi,Asano, Jun,Hori, Wataru,Fukuchi, Kazunori,Anraku, Tsuyoshi,Uno, Takashi
, p. 776 - 792 (2006)
We describe the design, synthesis, and physicochemical and biological properties of a novel series of 7-heterocycle-6-trifluoromethyl-3- oxoquinoxaline-2-carboxylic acids bearing a substituted phenyl group joined through a urethane or urea linkage to the heterocycle at the 7 position. Introduction of the trifluoromethyl group at the 6 position conferred good biological activity, including neuroprotective effects, as well as good physicochemical properties. In terms of α-amino-3-hydroxy-5- methylisoxazole propionate receptor (AMPA-R) affinity, a urea linkage was equivalent to a urethane linkage and a pyrrole ring at the 7 position reduced affinity in comparison with an imidazole ring. Among this series, compound 14h (KRP-199), which has a 4-carboxyphenyl group joined through a urethane linkage to a 7-imidazolyl heterocycle, was found to possess high potency and selectivity for the AMPA-R in vitro and to exhibit good neuroprotective effects in vivo. Furthermore, the compound showed good physicochemical properties, including stability to light and good solubility in aqueous solutions.
Synthesis and AMPA receptor antagonistic activity of a novel 7-imidazolyl-6-trifluoromethyl quinoxalinecarboxylic acid with a substituted phenyl group and improved its good physicochemical properties by introduced CF3 group
Takano, Yasuo,Shiga, Futoshi,Asano, Jun,Hori, Wataru,Anraku, Tsuyosi,Uno, Takashi
, p. 5107 - 5111 (2007/10/03)
We describe the synthesis, physicochemical and biological properties of a novel series of 7-imidazolyl-6-trifluoromethyl quinoxalinecarboxylic acids with a substituted phenyl group. Among them, compound 9k (KRP-199) was found to possess high potency and selectivity for the AMPA-R and to exhibit good neuroprotective effects in vivo, and also showed good physicochemical properties by introduced trifluoromethyl group at the C-6 position.
