β-Lactams as versatile synthons for homochiral ibotenate analogues with potential for activity at glutamate receptors1
作者:Peter B. Hitchcock、Konstantinos Papadopoulos、Douglas W. Young
DOI:10.1039/b304607a
日期:——
The activated β-lactam aldehydes 37, 41 and 57 were synthesised. Aldehydes 37 and 57 proved to be more versatile substrates for our âring switchingâ strategy to homochiral glutamate antagonists than the corresponding compounds in the pyroglutamate or 6-oxopipecolinate series had been. Substantial libraries of homochiral heteroaromatic glycine derivatives with potential for activity at specific glutamate receptor sub-types were prepared from these aldehydes. The aldehyde 41, containing an additional anion stabilising group, underwent a retro-aldol process under âring switchingâ conditions.
我们合成了活化的δ-内酰胺醛 37、41 和 57。与焦谷氨酸或 6-oxopipecolinate 系列中的相应化合物相比,醛 37 和 57 被证明是我们的 "环转 "策略中同手性谷氨酸拮抗剂的通用底物。从这些醛类化合物中制备出了大量在特定谷氨酸受体亚型上具有潜在活性的同手性杂芳香族甘氨酸衍生物库。醛 41 含有一个额外的阴离子稳定基团,在 "环状切换 "条件下进行了逆醛化过程。