tert-Butyl (2S,3R)-(+)-6-oxo-2,3-diphenylmorpholine-4-carboxylate(2S,3R)-(+)-4-Boc-6-oxo-2,3-diphenylmorpholine(5S,6R)-(+)-4-Boc-5,6-diphenyl-2-morpholinone(2R,3S)-(-)-N-Boc-6-oxo-2,3-diphenylmorpholinetert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate(2R,3S)-(-)-6-氧代-2,3-二苯基-4-吗啉羧酸叔丁酯(2R,3S)-(-)-N-叔丁氧羰基-6-氧代-2,3-二苯基吗啉tert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate(2R,3S)-(-)-2,3-Diphenyl-6-oxomorpholine, N-BOC protectedtert-Butyl (2R,3S)-(-)-2,3-diphenyl-6-oxomorpholine-4-carboxylate