Reaction of different α-sulfonyl acetamides with methyl acrylate
作者:Meng-Yang Chang、Shui-Tein Chen、Nein-Chen Chang
DOI:10.1016/s0040-4020(02)00475-1
日期:2002.6
The base-induced tandem-coupling/cyclization reactions of various α-sulfonyl acetamide derivatives A with methyl acrylate differentiated between two different pathways to form α-sulfonyl analogs of glutarimides B and 2-hydroxycyclohexenecarboxylic acid derivatives C in different ratios. The reaction of α-sulfonyl acetamide dianion with methyl acrylate depended on three factors: the stability of the
Electrophiles for covalent inhibitors that are suitable for in vivo administration are rare. While acrylamides are prevalent in FDA-approved covalent drugs, chloroacetamides are considered too reactive for such purposes. We report sulfamate-based electrophiles that maintain chloroacetamide-like geometry with tunablereactivity. In the context of the BTK inhibitor ibrutinib, sulfamate analogues showed
适合体内给药的共价抑制剂的亲电子试剂很少。虽然丙烯酰胺在 FDA 批准的共价药物中很常见,但氯乙酰胺被认为对于此类目的反应性太强。我们报道了基于氨基磺酸盐的亲电子试剂,其保持类似氯乙酰胺的几何形状并具有可调节的反应性。在 BTK 抑制剂依鲁替尼的背景下,氨基磺酸类似物在蛋白质标记、体外和细胞激酶活性测定中显示出较低的反应性和相当的效力,并且在 CLL 小鼠模型中有效。在第二个示例中,我们将氯乙酰胺 Pin1 抑制剂转化为有效的选择性氨基磺酸乙酰胺,并提高了缓冲液稳定性。最后,我们证明氨基磺酸乙酰胺可用于共价配体定向释放(CoLDR)化学,既可用于生成“开启”探针,也可用于蛋白质的无痕配体定向位点特异性标记。总而言之,这种化学物质代表了适合体内共价靶向的亲电试剂列表中的一个有前景的新成员。