In model studies, a fully protected D-galactopyranoside 4-triflate and two
6-deoxy analogues were shown to alkylate cyclohexylamine, leading to
4-cyclohexylamino-4-deoxy- and 4,6-dideoxy-D-glucopyranosides as the major
products in satisfactory yield, accompanied by alkenes resulting from
elimination of triflic acid. Coupling of
tetra-O-benzyl-1-epivalienamine with methyl
3-O-benzoyl-6-deoxy-4-O-
trifluoromethylsulfonyl-β-D-galactoside gave a diastereoisomer of methyl
acarviosin in protected form. Deprotection completed the first synthesis of
methyl
4,6-dideoxy-4-[(1′R,4′R,5′S,6′S)-4′,5′,6′-trihydroxy-3′-(hydroxymethyl)cyclohex-2′-enyl]amino-β-D-glucoside,
a potential β-glycosidase inhibitor.
在模型研究中,完全保护的 D-半乳糖吡喃糖苷 4-三酸酯和两种
6-脱氧类似物可烷基化环己胺,从而生成
4-环己基氨基-4-脱氧-和 4,6-二脱氧-D-吡喃葡萄糖苷作为主
生成物,产量令人满意。
消除三氟甲酸产生的烯烃。四-O-苄基-1
四-O-苄基-1-epivalienamine 与甲基
3-O-benzoyl-6-deoxy-4-O-
三氟甲基磺酰基-β-D-半乳糖苷的非对映异构体。
阿卡维奥素的非对映异构体。去保护完成了
甲基
4,6-二脱氧-4-[(1′R,4′R,5′S,6′S)-4′,5′,6′-三羟基-3′-(羟甲基)环己-2′-烯基]氨基-β-D-葡萄糖苷的首次合成、
一种潜在的 β-糖苷酶抑制剂。