Imidazoline ring cleavage in 1,3,6,10-tetraazatetracyclo-[7.3.1.02,7.06,13]trideca-4, 11-dienes, leading to the formation of diquinoxalino[1,2-a?2?,3?-d]pyrrole derivatives
An alternative method to access diverse N,N′-diquaternised-3,3′-biquinoxalinium “biquinoxen” dications
作者:Nicolas Leblanc、Stephen Sproules、Annie K. Powell
DOI:10.1039/c7nj00531h
日期:——
An alternative synthetic route for the design of N,N′-diquaternised-3,3′-biquinoxalinium “biquinoxen” dications is reported, involving oxidative radical coupling of dithionite reduced quinoxaline quaternary salts. Although the reaction is not regioselective, leading to relatively modest yields (up to 32%), the advantages of this new synthetic protocol lie in a simple potentially gram scale synthesis
Bornyl and isobornyl esters of carboxylic acids of condensed
申请人:Uralsky politekhnichesky institut
公开号:US05166348A1
公开(公告)日:1992-11-24
Bornyl and isobornyl esters of carboxylic acids of condensed tetrahydroquinoxalines having the general formula ##STR1## where R.sup.1 is CH.sub.3 or C.sub.2 H.sub.5 ##STR2## where R.sup.2 is ##STR3## The proposed compounds are active against viruses and can therefore be used in medicine.
BORNYL AND ISOBORNYL CARBOXYLIC ESTERS OF CONDENSED TETRAHYDROQUINOXALINES AS ANTIVIRAL AGENTS
申请人:URALSKY POLITEKHNICHESKY INSTITUT IMENI S.M. KIROVA
公开号:EP0456843A1
公开(公告)日:1991-11-21
Bornyl and isobornyl carboxylic esters of condensed tetrahydroquinoxalines of general formula (I), wherein R¹ represents CH₃ or C₂H₅, (a) represents (b) or (c), wherein R² represents (d) or (e). The claimed compositions have antivirus action and may be used in medicine.
Cyclization of N-alkylazinium cations with bisnucleophiles. 7. Reactions of quinoxalinium salts with ?-substituted acetamides
作者:V. N. Charushin、L. M. Naumova、G. G. Izmailova、O. N. Chupakhin
DOI:10.1007/bf00516461
日期:1983.8
Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 11. Reactions of quinoxalinium salts with thioamides ? Simple method for the synthesis of hydrogenated thiazolo[4,5-b]quinoxalines
作者:V. G. Baklykov、V. N. Charushin、O. N. Chupakhin、V. N. Drozd