aminomonosaccharides (2, 3, and 13) with 3,4,6-tri-O-acetyl-2-azido-2-deoxy-α-D-galactopyranosyl bromide (1) gives disaccharide derivatives (4–6, 14 and 15) with an N-protected amino group in a sugar ring and a latent amino group in the other one. These disaccharide derivatives are transformed into disaccharide diisothiocyanates with the NCS groups in the 2,2′ (10–12) or in the 1, 2′ (20, 21) positions. 1H and 13C
的6-糖基化Ô三苯醚ñ -保护aminomonosaccharides(2,3,和13与3,4,6-三- )ø -乙酰基-2-
叠氮基-2-脱氧α -D-
吡喃半
乳糖基
溴化物(1)给出二糖衍
生物(4–6、14和15),在糖环中具有N保护的
氨基,而在另一个中具有潜在的
氨基。这些二糖衍
生物被转化为带有
NCS基团的2,2'(10-12)或1,2'(20,21)位置的二糖二异
硫氰酸酯。1 H和13报告了制备的化合物的13 C NMR数据。