Asymmetric syntheses of (R)-4-halo-6,6a,7,8,9,10-hexahydro-5H-pyrazino[1,2-a][1,n]naphthyridines, important 5-HT2C agonist precursors
Keywords: 5-HT2C agonists; Asymmetric synthesis; Lorcaserin; Sulfamidate; Tetrahydronaphthyridines;