26054-60-4 N-Carbobenzyloxy-L-Serine-beta-Lactone N-芐氧羰基-L-絲氨酸(Β-內(nèi)酯) 98632-91-8 N-Carbobenzyloxy-D-Serine-beta-Lactone N-芐氧羰基-D-絲氨酸(Β-內(nèi)酯) 98541-64-1 Boc-L-Serine-beta-Lactone N-叔丁氧羰基-L-絲氨酸(Β-內(nèi)酯) 126330-77-6 Boc-D-Serine-beta-Lactone N-叔丁氧羰基-D-絲氨酸(Β-內(nèi)酯) 149572-97-4 (R)-3-Amino-1-oxetanone p-toluenesulfonic acid salt (R)-3-氨基-2-氧雜環(huán)酮對甲苯磺酸 112839-95-9 (S)-3-Amino-2-oxetanone p-toluenesulfonic acid salt (S)-3-氨基-2-氧雜環(huán)酮對甲苯磺酸