通过简便的方法从容易获得的底物合成手性磷化合物是一种有吸引力的策略。在这项研究中,开发了一种铜催化的膦基丙二烯与双(频哪醇)二硼的高区域选择性不对称硼质子化的有效途径,以高产率和高达 98% ee 的高对映选择性提供手性烯丙基氧化膦。通过将手性烯丙基氧化膦轻松转化为几种立体特异性产物,进一步证明了合成效用。
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.
Synthesis of chiral phosphorus compounds from readily available substrates by a facile method is an attractive strategy. In this study, an efficient route for copper-catalyzedasymmetric boroprotonation of phosphinylallenes with bis(pinacolato)diboron with high regioselectivity was developed, affording chiral allylphosphine oxides in high yields with high enantioselectivities of up to 98% ee. The synthetic
通过简便的方法从容易获得的底物合成手性磷化合物是一种有吸引力的策略。在这项研究中,开发了一种铜催化的膦基丙二烯与双(频哪醇)二硼的高区域选择性不对称硼质子化的有效途径,以高产率和高达 98% ee 的高对映选择性提供手性烯丙基氧化膦。通过将手性烯丙基氧化膦轻松转化为几种立体特异性产物,进一步证明了合成效用。