Oxone promoted dehydrogenative Povarov cyclization of <i>N</i>-aryl glycine derivatives: an approach towards quinoline fused lactones and lactams
作者:Devidas A. More、Ganesh H. Shinde、Aslam C. Shaikh、M. Muthukrishnan
DOI:10.1039/c9ra06212b
日期:——
Oxone promoted intramolecular dehydrogenative imino Diels–Alderreaction (Povarov cyclization) of alkyne tethered N-aryl glycine esters and amides has been explored, thus affording biologically significant quinoline fused lactones and lactams. The reaction is simple, scalable, and high yielding (up to 88%). The method was further extended to prepare biologically important luotonin-A analogues and the
Provided is a novel amine compound represented by the following formula (I) having a superior peripheral blood lymphocyte decreasing action and superior in the immunosuppressive action, rejection suppressive action and the like, which shows decreased side effects of, for example, bradycardia and the like, or a pharmaceutically acceptable acid addition salt thereof, or a hydrate thereof, or a solvate thereof.
wherein each symbol is as defined in the specification.