O-叔丁基-L-苏氨酸   、                                                                                      
Fmoc-O-叔丁基-L-丝氨酸 3,4-二氢-4-氧代-1,2,3-苯并三嗪-3-基酯   、                                                                                      
Fmoc-Pro-ODhbt   、                                                                                      N
α-(fluoren-9-ylmethoxycarbonyl)-3-O-<2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1<*>3)-4,6-di-O-acetyl-2-azido-2-deoxy-D-galactopyranosyl>-L-threonine pentafluorophenyl ester   、                                                                                      alkaline earth salt of/the/ methylsulfuric acid                                                                                                                                                                                                                                                                                                          生成