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초록
In order to replace thiourea group with the more drug-like moiety for 1,3-dibenzylthioureas having TRPV1 antagonist activity, we introduced a set of functional groups between the two aromatic rings based on bioisosteric replacement. The synthesized bioisosteres of 1,3-dibenzylthioureas were tested for their antagonist activities on TRPV1 by Ca-45(2+)-influx assay using neonatal rat cultured spinal sensory neurons. Among the tested 14 kinds of 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 mu M of IC50 value, indicating that thiourea group of 1,3-dibenzylthioureas could be replaced to 2-methylacrylamide without loss of their potencies. (C) 2018 Elsevier Ltd. All rights reserved.
키워드
- 제목
- 2-Methylacrylamide as a bioisoster of thiourea group for 1,3-dibenzylthioureido TRPV1 receptor antagonists
- 저자
- Park, Seol Rin; Kim, Juhyun; Lee, Sun Young; Park, Young-Ho; Kim, Hee-Doo
- 발행일
- 2018-06
- 유형
- Article
- 권
- 28
- 호
- 11
- 페이지
- 2080 ~ 2083