2â²-,3â²â;4,6;4â²,6â²-Tri-O-cyclohexylidene-α,α-trehalose 4 is prepared from α,α-trehalose, regioselectively acylated at C-2 with palmitate; after further acylation with palmitate at C-3, deacetalisation gives 2,3-di-O-palmitoyl-α,α-trehalose 2.
2â²-,3â²â;4,6;4â²,6â²-三-O-环己亚基-δ,δ-三卤醛糖 4 由δ,δ-三卤醛糖制备而成,在 C-2 处与
棕榈酸酯进行选择性酰化;在 C-3 处与
棕榈酸酯进一步酰化后,脱乙酰化得到 2,3-二-O-棕榈酰基-δ,δ-三卤醛糖 2。