Development of a Practical Route for the Manufacture of N-[5-(3-Imidazol-1-yl-4-methanesulfonyl-phenyl)-4-methyl-thiazol-2-yl]acetamide
摘要:
An efficient synthesis of a potent candidate in our respiratory program is described. The synthesis based on a key Darzens condensation-alpha,beta-epoxide rearrangement circumvented the toxicity and safety issues encountered in the original synthesis route. Subsequent functionalization and formation of an heterocyclic moiety is presented with a particular emphasis on the practicality, robustness, and streamlining of the process.
Development of a Practical Route for the Manufacture of N-[5-(3-Imidazol-1-yl-4-methanesulfonyl-phenyl)-4-methyl-thiazol-2-yl]acetamide
摘要:
An efficient synthesis of a potent candidate in our respiratory program is described. The synthesis based on a key Darzens condensation-alpha,beta-epoxide rearrangement circumvented the toxicity and safety issues encountered in the original synthesis route. Subsequent functionalization and formation of an heterocyclic moiety is presented with a particular emphasis on the practicality, robustness, and streamlining of the process.
benzaldehydes and subsequent α,β-epoxyrearrangement is reported. The process developed is both amenable to large scale and parallel synthesis. While electron-poor benzaldehydes gave mixtures of aryl ketones and 2-substituted aryl ketones in mediocre to low yields, electron-rich benzaldehydes were found to react in high yields with complete regioselectivity to form 2-substituted aryl ketones.