59215-39-3Relevant academic research and scientific papers
The optimization of xanthine derivatives leading to HBK001 hydrochloride as a potent dual ligand targeting DPP-IV and GPR119
Li, Gang,Meng, Bingxu,Yuan, Baokun,Huan, Yi,Zhou, Tian,Jiang, Qian,Lei, Lei,Sheng, Li,Wang, Weiping,Gong, Ningbo,Lu, Yang,Ma, Chen,Li, Yan,Shen, Zhufang,Huang, Haihong
, (2020/01/09)
A series of xanthine compounds derived from the previous hit 20i with modification on the terminal side chain was discovered through ring formation strategy. Systematic optimization of the compounds with rigid heterocycles in the hydrophobic side chain led to the new lead compound HBK001 (21h) with the improved DPP-IV inhibition and moderate GPR119 agonism activity in vitro. As a continuing work to further study the PK and PD profiles, 21h and its hydrochloride (22) were synthesized on grams scale and evaluated on the ADME/T and oral glucose tolerance test (OGTT) in ICR mice. Compound 22 showed the improved bioavailability and blood glucose-lowering effect in vivo compared to its free base 21h probably attributed to its improved solubility and permeability. The preliminary toxicity studies on compound 22 exhibited that the result of mini-Ames was negative and the preliminary acute toxicity LD50 in mice was above 1.5 g/kg, while it showed moderate inhibition on hERG channel with IC50 4.9 μM maybe due to its high lipophilicity. These findings will be useful for the future drug design for more potent and safer dual ligand targeting DPP-IV and GPR119 for the treatment of diabetes.
Pd-Catalyzed Synthesis of Piperazine Scaffolds under Aerobic and Solvent-Free Conditions
Reilly, Sean W.,Mach, Robert H.
supporting information, p. 5272 - 5275 (2016/10/31)
A facile Pd-catalyzed methodology providing an efficient synthetic route to biologically relevant arylpiperazines under aerobic conditions is reported. Electron donating and sterically hindered aryl chlorides were aminated to afford yields up to 97%, with examples using piperazine as solvent, illustrating an ecofriendly, cost-effective synthesis of these privileged structures.
PROBES FOR IMAGING HUNTINGTIN PROTEIN
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Paragraph 0248, (2016/03/22)
Provided are imaging agents comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof, and methods of their use.
