2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido[6,1-a]isoquinolin-4-one


CAS No : 75535-96-5
Product Type Intermediate
Category Anti-COPD
End Use API Ensifentrine
DMF Status O-DMF
General description:
2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido[6,1-a]isoquinolin-4-one is a complex pharmaceutical intermediate used in the synthesis of active pharmaceutical ingredients (APIs) and advanced bioactive compounds. Its fused pyrimido-isoquinolinone core, combined with chloro and dimethoxy substituents, makes it a valuable heterocyclic building block in medicinal and fine chemical synthesis.

This intermediate is manufactured with high purity and controlled impurity profiles to ensure consistency, stability, and reliable performance in downstream synthetic processes. It is suitable for research and development, process optimization, and scale-up for commercial pharmaceutical manufacturing, supporting the development of therapeutics across diverse applications.
Chemical Structure:
2-Chloro-6,7-dihydro-9,10-dimethoxy-4H-pyrimido[6,1-a]isoquinolin-4-one Chemical structure