Halogenation reactions in position 3 of quinoline-2,4-dione systems by electrophilic substitution and halogen exchange
摘要:
3-Substituted 4-hydroxy-2(1 H)-quinolones 3, 5, 7 are halogenated with bromine or sulfuryl chloride to yield the quinolinediones 9 or 10. Reaction of 3, 5, 7 with chloroform gives the dichloromethyl quinolinediones 11. Halogen exchange leads from the chloro quinolinediones 10 to fluoro quinolinedones 12 and to azido quinolinediones 13. Similarly the dichloro quinolinedione 10 an reacts to the difluoro quinolinedione 14, which is reduced to the 3-fluoro-4-hydroxyquinolone 16 and reacts again with sulfuryl chloride to give the mixed 3-chloro-3-fluoroquinolinedione 15.
Halogenation reactions in position 3 of quinoline-2,4-dione systems by electrophilic substitution and halogen exchange
摘要:
3-Substituted 4-hydroxy-2(1 H)-quinolones 3, 5, 7 are halogenated with bromine or sulfuryl chloride to yield the quinolinediones 9 or 10. Reaction of 3, 5, 7 with chloroform gives the dichloromethyl quinolinediones 11. Halogen exchange leads from the chloro quinolinediones 10 to fluoro quinolinedones 12 and to azido quinolinediones 13. Similarly the dichloro quinolinedione 10 an reacts to the difluoro quinolinedione 14, which is reduced to the 3-fluoro-4-hydroxyquinolone 16 and reacts again with sulfuryl chloride to give the mixed 3-chloro-3-fluoroquinolinedione 15.
Agents And Methods For Treating Ischemic And Other Diseases
申请人:Sun Xiujun
公开号:US20140221423A1
公开(公告)日:2014-08-07
This invention relates to compounds that modulate TRPM7 protein activity and use of the same for treatment or prophylaxis of ischemia, cancer, pain or glaucoma.
本发明涉及调节TRPM7蛋白活性的化合物及其在缺血、癌症、疼痛或青光眼的治疗或预防中的应用。
US9334256B2
申请人:——
公开号:US9334256B2
公开(公告)日:2016-05-10
US9566284B2
申请人:——
公开号:US9566284B2
公开(公告)日:2017-02-14
Halogenation reactions in position 3 of quinoline-2,4-dione systems by electrophilic substitution and halogen exchange
3-Substituted 4-hydroxy-2(1 H)-quinolones 3, 5, 7 are halogenated with bromine or sulfuryl chloride to yield the quinolinediones 9 or 10. Reaction of 3, 5, 7 with chloroform gives the dichloromethyl quinolinediones 11. Halogen exchange leads from the chloro quinolinediones 10 to fluoro quinolinedones 12 and to azido quinolinediones 13. Similarly the dichloro quinolinedione 10 an reacts to the difluoro quinolinedione 14, which is reduced to the 3-fluoro-4-hydroxyquinolone 16 and reacts again with sulfuryl chloride to give the mixed 3-chloro-3-fluoroquinolinedione 15.