复合黄酮醇糖苷 montbretin A 的模拟物(其中黄酮醇部分通过部分肽连接体与咖啡酸偶联)已被证明是人胰腺 α-淀粉酶的有效抑制剂,具有作为控制血糖水平的治疗剂的潜力。在探索最佳接头长度后,根据酶/抑制剂复合物的结构设计了具有分支接头的版本的合成路线。即使用聚合物修饰作为改变溶解度的手段,所得支化抑制剂仍能保持纳摩尔效力。类似的改进以及纳摩尔亲和力也可以通过与环糊精缀合来实现,环糊精有可能与人淀粉酶表面上发现的淀粉结合位点结合。因此,将可缀合分支并入这种不寻常的药效团中,为进一步修饰提供了相当大的灵活性,以改善药代动力学行为或作为捕获标签或荧光团的附着位点。
Analgesic dipeptide amides and method of use and compositions thereof
申请人:Sterling Drug Inc.
公开号:US04454120A1
公开(公告)日:1984-06-12
A genus of dipeptide amides including as the preferred subgenus the dipeptide amides having the structural formula R.sub.1 TyrR.sub.2 D-Q-NR.sub.4 R.sub.5 wherein Q is Met, Met(O), Gln or Ser, R.sub.1 and R.sub.2 are each hydrogen or alkyl, R.sub.4 is phenylalkyl or substituted-phenylalkyl and R.sub.5 is hydrogen, alkyl, phenylalkyl, substituted-phenylalkyl or X-alkyl wherein X is an electronegative group are prepared by condensing the dipeptide with the amine or the amino acid with the amino acid amide and are useful as analgesics.
Synthesis of human growth hormone-(27–44)-octadecapeptide and some smaller fragment peptides
作者:Francesco Chillemi
DOI:10.1039/p19810001913
日期:——
Synthesis in solution of humangrowthhormone-(27–44)-octadecapeptide and a series of smallerfragments was carried out by a stepwise procedure, starting at the carboxy-terminus and uitilizing active esters in the acylation reactions.
Synthesis of montbretin A analogues yields potent competitive inhibitors of human pancreatic α-amylase
作者:Christina R. Tysoe、Sami Caner、Matthew B. Calvert、Anna Win-Mason、Gary D. Brayer、Stephen G. Withers
DOI:10.1039/c9sc02610j
日期:——
Simplified analogues of the potent human amylase inhibitor montbretin A were synthesised and shown to bind tightly, K I = 60 and 70 nM, with improved specificity over medically relevant glycosidases, making them promising candidates for controlling blood glucose. Crystallographic analysis confirmed similar binding modes and identified new active site interactions.
合成了强效人类淀粉酶抑制剂 montbretin A 的简化类似物,并显示其紧密结合,KI = 60 和 70 nM,与医学相关糖苷酶相比具有更高的特异性,使它们成为控制血糖的有希望的候选者。晶体学分析证实了相似的结合模式并确定了新的活性位点相互作用。
Kalikhevich, V. N.; Churkina, S. I.; Martynov, V. F., Journal of general chemistry of the USSR, 1981, vol. 51, p. 1690 - 1695
作者:Kalikhevich, V. N.、Churkina, S. I.、Martynov, V. F.