21550-86-7Relevant academic research and scientific papers
Practical synthesis of quinoxalinones via palladium-catalyzed intramolecular N-arylations
Luo, Xuehong,Chenard, Etienne,Martens, Peter,Cheng, Yun-Xing,Tomaszewski, Mirosaw J.
supporting information; experimental part, p. 3574 - 3577 (2010/11/05)
A practical and highly efficient route to the synthesis of pharmaceutically interesting quinoxalinone scaffolds is reported. The key step involves an intramolecular palladium-catalyzed N-arylation under microwave irradiation. The developed methodology tolerates a variety of bromoanilides to afford a diverse collection of bicyclic and polycyclic quinoxalinones in high yield.
Synthesis of novel quinoxaline derivatives and its cytotoxic activities
Tanimori, Shinji,Nishimura, Takeshi,Kirihata, Mitsunori
experimental part, p. 4119 - 4121 (2010/04/29)
Substituted dihydroquinozalin-2-ones (1-16) have been synthesized easily by the use of copper-catalyzed coupling method. The reactions of 2-haloanilines with a variety of α-amino acids in the presence of copper (I) iodide gave corresponding 3-substituted
Synthesis of tri- and tetracyclic condensed quinoxalin-2-ones fused across the C-3 - N-4 bond
Chicharro, Roberto,De Castro, Sonia,Reino, Jose L.,Aran, Vicente J.
, p. 2314 - 2326 (2007/10/03)
We have studied the preparation of some fused quinoxalinones by Stevens rearrangement of a spiro-quinoxaline-derived ammonium ylide or by treatment of N-(2,4-dinitrophenyl)-and N-(2-nitrophenyl)imino acids with different reducing agents. We have reinvestigated and clarified some related processes found in the literature starting from imino acids derivatives. Additional reactions of the fused quinoxalinones, as well as the useful dehydrogenation/decarboxylation of some easily available 1-arylindoline-2-carboxylic acids to the corresponding 1-arylindoles, are also reported. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
Dihydroquinolines as novel n-NOS inhibitors
Jaroch, Stefan,Hoelscher, Peter,Rehwinkel, Hartmut,Suelzle, Detlev,Burton, Gerardine,Hillmann, Margrit,McDonald, Fiona M.
, p. 2561 - 2564 (2007/10/03)
Dihydroquinolines have been synthesized and have been shown to be potent n-NOS inhibitors. Selectivity versus e-NOS was increased to approximately 100-fold through appropriate substitution at the benzene ring.
Tetrahydropyrroloquinoxalines and Tetrahydropyrrolopyridopyrazines: Vascular Smooth Muscle Relaxants and Antihypertensive Agents
Abou-Gharbia, Magid,Freed, Meier E.,McCaully, Ronald J.,Silver, Paul J.,Wendt, Robert L.
, p. 1743 - 1746 (2007/10/02)
A series of tetrahydropyrroloquinoxalines and tetrahydropyrrolopyridopyrazines were synthesized and tested for their ability to relax K+-depolarized aortic smooth muscle and antihypertensive activity.It was shown that compo
Polycyclic Nitrogen Compounds. Part II. Tricyclic Quinoxazolines and Their 4- or 6-Aza Analogues
Adegoke, E. A.,Alo, Babajide
, p. 1509 - 1512 (2007/10/02)
1,2,3,3a-Tetrahydro-9-nitropyrroloquinoxalin-4-one and 7,8,9,10-tetrahydro-3-nitropyridoquinoxalin-6-one (V-VI) were reduced and deaminated to give new parent tricyclic quinoxalinone skeletons I-II.The latter compounds were identical with th
