Contribution of the Adenine Base to the Activity of Adenophostin A Investigated Using a Base Replacement Strategy
作者:Rachel D. Marwood、David J. Jenkins、Vanessa Correa、Colin W. Taylor、Barry V. L. Potter
DOI:10.1021/jm000265o
日期:2000.11.1
pha-D-glucopyranosyl-D-ribofuranose. Vorbrüggen condensation with activated imidazole or purine gave the required beta-substituted derivatives which were further elaborated to 7 and 8, respectively. Radioligand binding assays to hepatic InsP(3) receptors and functional assays of Ca(2+) release from permeabilized hepatocytes gave a rank order of potency of the ligands 2 approximately 8 > 7 approximately
3'-O-α-D-吡喃葡萄糖基-1-β-D-呋喃呋喃糖基氨基咪唑2',3'',4''-三磷酸(7)和3'-O-α-D-吡喃葡萄糖基-9-beta的合成描述了-D-呋喃呋喃核糖嘌呤2',3'',4''-三磷酸(8),这是超强1D-肌醇1,4,5-三磷酸受体激动剂腺苷A(2)的两个类似物。通过改进的路线由1,2-O-异亚丙基-α-D-木呋喃糖制备5-O-苄基-1,2-O-异亚丙基-α-D-呋喃核糖,并与3,4-di-O偶联-乙酰基-2,6-二-O-苄基-D-吡喃葡萄糖基二甲基亚磷酸酯得到3',4'-二-O-乙酰基-2',5,6'-三-O-苄基-3-O- α-D-吡喃葡萄糖基-1,2-O-异亚丙基-α-D-呋喃呋喃糖。除去异亚丙基缩醛并随后乙酰化得到中心二糖1,2,3',4'-四-O-乙酰基-2',5、6'-三-O-苄基-3-O-α-D-吡喃葡萄糖基-D-呋喃呋喃糖。用活化的咪唑或嘌呤进行弗布吕