A Modular Synthesis of 4-Aminoquinolines and [1,3] N-to-C Rearrangement to Quinolin-4-ylmethanesulfonamides
作者:Kyung Hwan Oh、Jin Gyeong Kim、Jin Kyoon Park
DOI:10.1021/acs.orglett.7b01701
日期:2017.8.4
diversified 4-aminoquinolines using nitriles, diaryliodoniums, and ynamides. The C7-substituted regioisomers were formed regioselectively when meta-substituted phenyliodonium salts were used. [1,3] N-to-C rearrangement of the products to quinolin-4-ylmethanesulfonamides and simultaneous deprotection of benzyl and sulfonamide group were newly developed. Finally, antimalarial CK-2-68 was successfully prepared
铜催化的区域控制的三组分反应使用腈,二芳基碘鎓和乙酰胺提供了多样化的4-氨基喹啉。当使用间取代的苯基碘鎓盐时,C 7取代的区域异构体是区域选择性地形成的。[1,3]产品的N-C重排为喹啉-4-基甲烷磺酰胺,同时脱保护苄基和磺酰胺基团。最后,成功制备了抗疟药CK-2-68。