2-Methylacrylamide as a bioisoster of thiourea group for 1,3-dibenzylthioureido TRPV1 receptor antagonists
作者:Seol Rin Park、Juhyun Kim、Sun Young Lee、Young-Ho Park、Hee-Doo Kim
DOI:10.1016/j.bmcl.2018.04.044
日期:2018.6
bioisosters, 2-methylacrylamide group was the best candidate to replace thiourea group. Compound 7c, 2-methylacrylamide analog of ATC-120, showed as potent as ATC-120 in its antagonist activity. In addition, 2-methylacrylamide analog 7e having vinyl moiety showed the most potent activity with 0.022 μM of IC50 value, indicating that thiourea group of 1,3-dibenzylthioureas could be replaced to 2-methylacrylamide
为了用具有TRPV1拮抗剂活性的1,3-二苄基硫脲用更像药物的部分取代硫脲基团,我们基于生物等位取代在两个芳香环之间引入了一组官能团。使用新生大鼠培养的脊髓感觉神经元,通过45Ca2 +-内流试验测试了合成的1,3-二苄基硫脲生物异构体对TRPV1的拮抗活性。在测试的14种生物等排体中,2-甲基丙烯酰胺基是取代硫脲基的最佳候选者。化合物7c,ATC-120的2-甲基丙烯酰胺类似物,在其拮抗活性方面显示出与ATC-120相同的效力。此外,具有乙烯基部分的2-甲基丙烯酰胺类似物7e表现出最强的活性,IC50值为0.022μM,表明硫脲基为1,