Design, Synthesis of Novel, Potent, Selective, Orally Bioavailable Adenosine A2A Receptor Antagonists and Their Biological Evaluation

Autor: Azfar Quraishi, Anita Chug, Suraj Menon, Vishal Unadkat, Sujay Basu, Madhav S. Seervi, Vandna Prasad, Sumit Chaudhary, Yogesh D. Shejul, Ganesh Bhat, Sachin Thorat, Ravi K. Bhamidipati, Shariq S. Ansari, Ashwinkumar V. Meru, Rhishikesh Thakare, Kasim A. Mookhtiar, Yogesh Salve, Venkata P. Palle, Minakshi Naykodi, Siddhartha De, Vaibhav Jain, Harish Patil, Indraneel Ghosh, Dinesh A. Barawkar, Meena Patel, Sreekanth R. Rouduri
Rok vydání: 2017
Předmět:
Zdroj: Journal of Medicinal Chemistry. 60:681-694
ISSN: 1520-4804
0022-2623
DOI: 10.1021/acs.jmedchem.6b01584
Popis: Our initial structure–activity relationship studies on 7-methoxy-4-morpholino-benzothiazole derivatives featured by aryloxy-2-methylpropanamide moieties at the 2-position led to identification of compound 25 as a potent and selective A2A adenosine receptor (A2AAdoR) antagonist with reasonable ADME and pharmacokinetic properties. However, poor intrinsic solubility and low to moderate oral bioavailability made this series unsuitable for further development. Further optimization using structure-based drug design approach resulted in discovery of potent and selective adenosine A2A receptor antagonists bearing substituted 1-methylcyclohexyl-carboxamide groups at position 2 of the benzothiazole scaffold and endowed with better solubility and oral bioavailability. Compounds 41 and 49 demonstrated a number of positive attributes with respect to in vitro ADME properties. Both compounds displayed good pharmacokinetic properties with 63% and 61% oral bioavailability, respectively, in rat. Further, compound 49 displa...
Databáze: OpenAIRE