Edney, Dean; Hulcoop, David G.; Leahy, John H.; Vernon, Lois E.; Wipperman, Mark D.; Bream, Robert N.; Webb, Michael R. published an article about the compound: Ethyl oxazole-5-carboxylate( cas:118994-89-1,SMILESS:O=C(C1=CN=CO1)OCC ).Quality Control of Ethyl oxazole-5-carboxylate. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:118994-89-1) through the article.
This paper describes the discovery and development of a flexible route to two candidate drug mols. by a common intermediate approach. Key reactions include Negishi and Suzuki couplings to form biaryl bonds. Conditions for a Miyaura borylation of heteroaryl bromides were also developed. Heteroaryl trifluoroborates and aryl chlorides were used as coupling partners in the Suzuki reaction, thereby minimizing detrimental side reactions such as protodeboronation and oxidative homocoupling. A complementary set of reaction conditions using pinacolboronates with potassium bifluoride as an additive were also developed and used to make 5 kg of drug substance for use in early-phase clin. trials.
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