N-Boc-(2S,3R)-(+)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate(2S,3R)-(+)-6-氧代-2,3-二苯基-4-吗啉羧酸叔丁酯tert-Butyl (2S,3R)-(+)-6-oxo-2,3-diphenyl-4-morpholinecarboxylate(2S,3R)-tert-Butyl 6-oxo-2,3-diphenylmorpholine-4-carboxylate(2S,3R)-(+)-N-Boc-6-oxo-2,3-diphenylmorpholine(2S,3R)-(+)-N-Boc-6-氧代-2,3-二苯基吗啉(2R,3S)-(-)-4-Boc-6-oxo-2,3-diphenylmorpholine(5R,6S)-(-)-4-Boc-5,6-diphenyl-2-morpholinonetert-Butyl (2R,3S)-(-)-6-oxo-2,3-diphenylmorpholine-4-carboxylate