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Upstream product

• 59016-93-2 p-hydroxymethylphenylboronic acid 
• 918309-29-2 tert-butyl (2E)-3-(2-[4-(bromomethyl)phenyl]-8-{[(4-tert-butyl-1,3-thiazol-2-yl)amino]carbonyl}-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylate 
• 918309-14-5 tert-butyl (2E)-3-(8-{[(4-tert-butyl-1,3-thiazol-2-yl)amino]carbonyl}-2-[4-(hydroxymethyl)phenyl]-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylate 
• 881997-05-3 tert-butyl (2E)-3-(8-{[(4-tert-butyl-1,3-thiazol-2-yl)amino]carbonyl}-2-chloro-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)acrylate 
• 918308-85-7 ethyl 1-[4-(3-[(1E)-3-tert-butoxy-3-oxoprop-1-en-1-yl]-8-{[(4-tert-butyl-1,3-thiazol-2-yl)amino]carbonyl}-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)benzyl]piperidine-4-carboxylate 

Relevant academic research and scientific papers

MexAB-OprM specific efflux pump inhibitors in Pseudomonas aeruginosa. Part 6: Exploration of aromatic substituents

A series of 4-oxo-4H-pyrido[1,2-a]pyrimidine derivatives, derivatized at the 2-position with aromatic substituents, were synthesized by the Suzuki cross-coupling method and evaluated for their ability to potentiate the activity of the fluoroquinolone levo