These important building blocks, necessary for the development of a variety of drug candidates in a variety of therapeutic indices, are a particular specialty of ARCI’s research chemists. We offer a large catalogue of both standard and novel heterocyclics suitable for your drug discovery initiatives and structure-activity relationship (SAR) studies. Many of our novel intermediates possess structures matching Lipinski’s Rule of Fives for druglikeness, speeding up your candidate discovery process.

Among our heterocylic products, we supply:

• Five-membered heterocycles (furans, oxazoles, isooxazoles, thiophenes, thiazoles,  isothiozoles, pyrroles, pyrrolidines, pyrazoles, imidazoles, triazoles, tetrazoles)
• Six-membered heterocycles (pyridines, bipyridines, piperidines, piperazines, pyrimidines, pyradazines, pyrazines, morpholines)
• Fused heterocycles (Indoles . Indazoles, azaindoles, enzothiazoles, benzooxazoles,  benzodiazapines, imidazopyridines, quinolines, isoquinolines, quinozilines,  quinoxalines)
• Bis-heterocyclic compounds