Efficient synthesis of 3-substituted pyrimidinones

ORGN 140

Jae Uk Jeong, Xiaohong Chen, Attiq Rahman, Dennis S. Yamashita, and Juan I. Luengo. Medicinal Chemistry, GlaxoSmithKline Pharm, 1250 South Collegeville Road, Collegeville, PA 19426
Many biologically active compounds such as PPAR agonists and angiotensin antagonists contain 3-substituted pyrimidinones. A novel and efficient synthesis of 3-substituted pyrimidinones has been developed. The key step involves the cyclization of enamides, derived from readily available beta-keto esters, with trimethylaluminum and various primary amines. The general procedure, scope and application of this synthetic method will be discussed.