Synthesis of Highly Substituted 1,2-Diazetidin-3-ones, Small-Ring Scaffolds for Drug Discovery
作者:Marilia S. Santos、Andrew Nortcliffe、William Lewis、Tracey D. Bradshaw、Christopher J. Moody
DOI:10.1002/chem.201801309
日期:2018.6.12
readily accessible, small ring scaffolds that upon functionalization have the potential to produce diverse 3‐dimensional structures for drug discovery. Thus, treatment of diazo hydrazides, obtained from simple hydrazides and malonyl half ester derivatives, followed by diazo transfer, with catalytic amounts of rhodium(II) acetate dimer results in intramolecular carbenoid N−H insertion to give 1,2‐diazetidin‐3‐ones
1,2-Diazetidin-3-ones是易于获得的小型环型支架,在功能化后可能会产生用于药物发现的多种3维结构。因此,对重氮酰肼的处理(由简单的酰肼和丙二酸半酯衍生物制得),然后重氮转移,并催化量的铑铑(II)二聚体会导致分子内类固醇NH插入,从而生成1,2-二氮杂丁-3-那些。尽管四元环的不稳定性可能会阻碍随后的官能化反应,但通过在N-1处脱保护以及随后形成酰胺或尿素,可以获得许多新的衍生物。X射线晶体学证实了四个四元环的结构。该化合物在乳癌细胞中显示出适度的生长抑制活性。