3-Methoxyazetidine Hydrochloride丨CAS 148644-09-1

3-Methoxyazetidine hydrochloride (CAS 148644-09-1) is a small, functionalized heterocyclic compound widely used as an intermediate in pharmaceutical and medicinal chemistry. Its azetidine ring, substituted with a methoxy group and stabilized as the hydrochloride salt, makes it a versatile building block for the synthesis of biologically active molecules, including central nervous system agents, enzyme inhibitors, and antiviral or anticancer compounds. The compound is also used in the preparation of chiral intermediates, where the strained four-membered azetidine ring can influence molecular conformation and enhance target selectivity. Additionally, it finds application in fine chemical synthesis for designing heterocyclic scaffolds with improved physicochemical and pharmacokinetic properties.

The benefits of 3-methoxyazetidine hydrochloride lie in its structural versatility, reactivity, and stability. The azetidine ring provides a rigid, conformationally constrained scaffold that can enhance binding interactions in biological targets. The methoxy substitution introduces electron-donating effects, improving chemical stability and modulating lipophilicity, while the hydrochloride form increases solubility and handling convenience. Its small size and functionalization allow incorporation into larger molecules without significantly increasing steric bulk, supporting efficient synthesis of diverse derivatives. These features make it an effective intermediate for drug discovery and fine chemical research, enabling high selectivity and optimized molecular properties.