3,4-Anhydro-1,6-dideoxy-1,6-episeleno-β-D-glucose was treated with
cyclohexylamine to afford an amino diol which was subsequently converted into
a cyclic carbamate, a compound shown to be a moderately successful glycosyl
donor. Treatment of the same 3,4-anhydro sugar and the 1,6-epithio analogue
with a 1-epivalienamine derivative afforded the corresponding secondary amines
which were converted into the analogous cyclic carbamates. The epithio
analogue was unsuccessful as a glycosyl donor, failing to glycosylate a
carbohydrate alcohol. On the other hand, the episeleno compound appeared to
function as a glycosyl donor but decomposition of the product occurred under
the conditions necessary for its isolation.
3,4-脱水-1,6-二脱氧-1,6-表硒-β-D-葡萄糖经环己基胺处理后,生成氨基二醇,随后转化为葡萄糖。
环己胺处理,得到氨基二醇,随后将其转化为环氨基甲酸酯。
环氨基甲酸酯。
供体。将相同的 3,4-anhydro 糖和 1,6-epithio 类似物
1-epivalienamine 衍生物处理后,可得到相应的仲胺
转化为类似的环氨基甲酸酯。表硫代
类似物作为糖基供体并不成功,未能糖基化碳水化合物醇。
碳水化合物醇。另一方面,表硒化合物似乎可以
但在其分离所需的条件下,产物会发生分解。
但在分离所需的条件下,产物发生了分解。