Chemistry involves the study of all things chemical – chemical processes, chemical compositions and chemical manipulation – in order to better understand the way in which materials are structured, how they change and how they react in certain situations. Application In Synthesis of 3,5-Dichloropyridazine
The present invention provides, in part, compounds of Formula (I): or an N-oxide thereof, or a pharmaceutically acceptable salt of the compound or the N- oxide, wherein: R1, R2, L, A, and E are as described herein; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds, N-oxides, or salts, and their uses for treating M4-mediated (or M4- associated) disorders including, e.g., Alzheimer’s Disease, schizophrenia (e.g., its cognitive and negative symptoms), pain, addiction, and a sleep disorder.
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research. 1837-55-4 is helpful to your research. Application In Synthesis of 3,5-Dichloropyridazine
Reference：
Pyridazine – Wikipedia,
Pyridazine | C4H4N1188 – PubChem