C-β-d-glucosaminyl 1,2,4-triazoles and imidazoles were synthesized and tested as inhibitors against muscle and liver isoforms of glycogen phosphorylase (GP). While the N-β-d-glucosaminyl 1,2,3-triazoles showed weak or no inhibition, the C-β-d-glucosaminyl derivatives had potent activity, and the best inhibitor was the 2-(β-d-glucosaminyl)-4(5)-(2-naphthyl)-imidazole with a Ki value of 143 nM against human liver
芳基取代的1-(β- d -glucosaminyl)-
1,2,3-三唑以及Ç -β- d -glucosaminyl
1,2,4-三唑类和
咪唑的合成和作为对抗的肌肉和肝脏同种型
抑制剂测试
糖原磷酸化酶(GP)。虽然Ñ -β- d -glucosaminyl
1,2,3-三唑呈弱或无抑制,所述Ç -β- d -glucosaminyl衍
生物具有有效的活性,而最好的
抑制剂是2-(β- d -glucosaminyl)具有K i的-4(5)-(2-
萘基)-
咪唑抗人肝GPa值143 nM。兔肌肉GPb
抑制剂复合物的X射线晶体学研究揭示了强结合的结构特征,并为
葡萄糖基和糖胺基衍
生物之间的抑制力差异以及
咪唑与
1,2,4-三唑之间的差异提供了解释类似物。