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。
Some aspects of the isopropylidenation of d-glucitol under neutral conditions
作者:Gordon J.F. Chittenden
DOI:10.1016/s0008-6215(00)81892-3
日期:1982.10
has been studied. An improved procedure for the isolation of 1,2:5,6-di- O -isopropylidene- d -glucitol, the main equilibrium product, by direct crystallisation or via the 3,4-dibenzoate is described. Some aspects of the reaction are discussed and compared with results obtained previously from the isopropylidenation of 1 in the presence of zinc chloride.
[DE] HEXITE UND HEXIT-ESTER ZUR VERWENDUNG ALS ANTIEPILEPTIKUM<br/>[EN] HEXITOLS AND HEXITOL ESTERS FOR USE AS ANTIEPILEPTICS<br/>[FR] HEXITOLS ET ESTERS D'HEXITOL S'UTILISANT COMME ANTI-EPILEPTIQUES
申请人:——
公开号:WO1997009323A2
公开(公告)日:1997-03-13
[EN] The invention concerns hexitol esters of a branched alkylcarboxylic acid having between 5 and 8 carbon atoms, in which optionally two adjacent alcohol groups in each case are bonded to each other by acetal or ketal bridges. The invention further concerns hexitols in which two adjacent alcohol groups in each case are bonded to each other by acetal or ketal bridges. The invention finally concerns the preparation of these compounds and their use as antiepilectics. [FR] L'invention concerne des esters d'hexitol d'un acide carboxylique d'alkyle ramifié ayant entre 5 et 8 atomes de carbone, dans chacun desquels éventuellement 2 groupes alcool adjacents sont combinés par des ponts acétal ou cétal. L'invention concerne également des hexitols dans chacun desquels 2 groupes alcool adjacents sont combinés par des ponts acétal ou cétal. L'invention concerne en outre leur préparation et leur utilisation comme anti-épileptiques. [DE] Die vorliegende Erfindung betrifft Hexit-Ester einer verzweigten Alkylcarbonsäure mit 5 bis 8 Kohlenstoffatomen, bei denen gegebenenfalls jeweils 2 benachbarte Alkoholgruppen durch Acetal- oder Ketalbrücken miteinander verknüpft sind, sowie Hexite, bei denen jeweils 2 benachbarte Alkoholgruppen durch Acetal- oder Ketalbrücken miteinander verknüpft sind. Die vorliegende Erfindung betrifft auch deren Herstellung und Verwendung als Antiepileptikum.
Synthesis of 1,4-dideoxy-1,4-imino-d-glucitol, a glucosidase inhibitor
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。
Synthesis of a Trihydroxylated
Aminoazepane from <scp>d</scp>-Glucitol by an Intramolecular
Aziridine Ring Opening
作者:Raquel Braga、Marcelo Valle
DOI:10.1055/s-0028-1083569
日期:——
Transformation of d-glucitol into its 1,6-diazido derivative allowed its conversion into the polyhydroxylated aminoazepane ring in a one-pot reaction using Ph3P and H2O.