3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido1,2-apyrimidin-4-one丨CAS 130049-82-0

3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one (CAS 130049-82-0) is a complex heterocyclic compound widely used as an intermediate in pharmaceutical research and organic synthesis. Its structure, combining a fused pyrido-pyrimidinone core with a chloroethyl substituent and a hydroxyl group, provides multiple reactive sites for chemical modification. This makes it particularly useful in the development of cytotoxic or antineoplastic agents, where precise structural modifications can optimize biological activity and pharmacokinetic properties. Additionally, it is employed in medicinal chemistry for the synthesis of derivatives targeting specific enzymes or receptors, aiding drug discovery programs focused on oncology, antiviral, and other therapeutic areas. Its structural versatility also allows its application in academic research for exploring new heterocyclic frameworks and synthetic methodologies.

The benefits of this compound stem from its multifunctional nature and its value as a building block for bioactive molecules. The chloroethyl group enables nucleophilic substitution reactions and the formation of covalent adducts, which is important in designing molecules with targeted biological activity. The hydroxyl and heterocyclic moieties provide hydrogen bonding and electronic properties that enhance molecular recognition and specificity in biological systems. Its utility as a synthetic intermediate accelerates the development of novel pharmaceuticals by allowing systematic structural variations to optimize efficacy, selectivity, and safety. Furthermore, its presence in research facilitates the creation of new heterocyclic scaffolds for drug discovery and mechanistic studies.