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Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
Novel 5-nitropyrimidine derivatives bearing endo-azabicyclic alcohols/amines as potent GPR119 agonists
Yuanying Fang1, Zunhua Yang1, Shankariah Gundeti2
1College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China.
Abstract:
A series of GPR119 agonists based on a 5-nitropyrimidine scaffold bearing endo-azabicyclic substituents were synthesized and evaluated for their GPR119 agonistic activities. Most compounds exhibited much stronger EC50 values than that of oleoylethanolamide (OEA). Among them, derivatives from endo-azabicyclic alcohols displayed more potent GPR119 agonistic activities than compounds with endo-azabicyclic amines. Especially the optimized compounds (6, 7, 8, 12, 17) were shown to have potent biological activities and were identified as full agonists. Isopropyl carbamate compound 8 synthesized from endo-azabicyclic alcohol was observed to have the best EC50 value (0.6nM). Generally 2-fluoro substitution of the aryl group at the C4 position of 5-nitropyrimidine scaffold resulted in the increase of biological activity.
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