26934-35-0Relevant articles and documents
A new class of symmetric bisbenzimidazole-based DNA minor groove-binding agents showing antitumor activity
Mann,Baron,Opoku-Boahen,Johansson,Parkinson,Kelland,Neidle
, p. 138 - 144 (2001)
The synthesis and evaluation of the novel head-to-head bisbenzimidazole compound 2,2-bis-[4′-(3″-dimethylamino-1″-propyloxy)phenyl]-5,5-bi-1 H-benzimidazole is described. An X-ray crystallographic study of a complex with the DNA dodecanucleotide sequence d(CGCGAAT-TCGCG) shows the compound bound in the A/T minor groove region of a B-DNA duplex and that the head-to-head bisbenzimidazole motif hydrogen-bonds to the edges of all four consecutive A:T base pairs. The compound showed potent growth inhibition with a mean IC50 across an ovarian carcinoma cell line panel of 0.31 μM, with no significant cross-resistance in two acquired cisplatin-resistant cell lines and a low level of cross-resistance in the P-glycoprotein overexpressing acquired doxorubicin-resistant cell line. Studies with the hollow fiber assay and in vivo tumor xenografts showed some evidence of antitumor activity.
IMIDAZO [2, 1-F] [1, 2, 4] TRIAZIN-4-AMINE DERIVATIVES AS TLR7 AGONIST
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Paragraph 0163-0164, (2020/08/22)
Disclosed herein is an imidazo [2, 1-f] [1, 2, 4] triazin-4-amine derivative or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof useful as a TLR7 agonist, and a pharmaceutical composition comprising the same. Also disclosed herein is a method of treating cancer using the imidazo [2, 1-f] [1, 2, 4] triazin-4-amine derivative or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof as TLR7 agonist.
Design, Synthesis, and Structure–Activity Relationship Analysis of Thiazolo[3,2-a]pyrimidine Derivatives with Anti-inflammatory Activity in Acute Lung Injury
Chen, Lingfeng,Jin, Yiyi,Fu, Weitao,Xiao, Siyang,Feng, Chen,Fang, Bo,Gu, Yugui,Li, Chenglong,Zhao, Yunjie,Liu, Zhiguo,Liang, Guang
supporting information, p. 1022 - 1032 (2017/07/11)
Acute lung injury (ALI) has a high lethality rate, and interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) contribute most to tissue deterioration in cases of ALI. In this study, we designed and synthesized a new series of thiazolo[3,2-a]pyrimidine derivatives based on a previously identified lead compound, and we evaluated their anti-inflammatory activities. Structure–activity relationship studies led to the discovery of two highly potent inhibitors. The two promising compounds were found to inhibit lipopolysaccharide (LPS)-induced IL-6 and TNF-α release in a dose-dependent manner in mouse primary peritoneal macrophages (MPMs). Furthermore, administration of these compounds resulted in lung histopathological improvements and attenuated LPS-induced ALI in vivo. Taken together, these data indicate that these novel thiazolo[3,2-a]pyrimidine derivatives could be developed as candidate drugs for the treatment of ALI.