作者:Janos Kuszmann、László Kiss
DOI:10.1016/s0008-6215(00)90194-0
日期:1986.9
and 4,5-anhydro derivatives. Reduction of this mixture by transfer hydrogenation using ammonium formate in methanol and Pd/C as catalyst afforded 1,4-dideoxy-1,4-imino-D-glucitol (4), the structure of which was proved after acetylation by 1H-n.m.r. spectroscopy. Compound 4 is a potent alpha-D-glucosidase inhibitor (Ki 7 X 10(-4)M) and a less potent beta-D-glucosidase inhibitor (Ki 1.25 X 10(-4)M), and
1,2:5,6-二-O-异亚丙基-D-葡萄糖醇通过其1,4-二甲磺酸盐转化为1-叠氮基-4-甲磺酸盐,在脱保护并用氢氧化钡处理后,得到9:1的糖基。相应的3,4-和4,5-脱水衍生物的混合物。通过在甲醇中以甲酸铵和Pd / C为催化剂的转移氢化反应来还原该混合物,得到1,4-二脱氧-1,4-亚氨基-D-葡萄糖醇(4),其结构经1H-nmr乙酰化后证明光谱学。化合物4是有效的α-D-葡糖苷酶抑制剂(Ki 7 X 10(-4)M)和次要的β-D-葡糖苷酶抑制剂(Ki 1.25 X 10(-4)M),并抑制β-D-半乳糖苷酶非竞争性。