Chemical Structure and Stereochemistry

endo-8-Azabicyclo[3.2.1]octan-3-ol hydrochloride belongs to the azabicycloalkane family, specifically the bicyclo[3.2.1]octane class bearing a nitrogen atom at the bridgehead position 8. This framework is closely related to the tropane alkaloid skeleton, a privileged scaffold in medicinal chemistry and natural product synthesis.

The defining stereochemical feature is the endo orientation of the C-3 hydroxyl group, meaning the hydroxyl is directed toward the same face as the nitrogen-containing bridge. This configuration distinguishes it from the corresponding exo isomer and confers distinct three-dimensional shape, hydrogen-bonding geometry, and binding properties relevant to biological target engagement.

The compound is supplied as its hydrochloride salt, which protonates the bridgehead nitrogen. This salt form enhances aqueous solubility, improves crystallinity, and increases bench stability compared with the free base, facilitating accurate weighing and formulation in research settings.

Physicochemical Properties and Handling

As a hydrochloride salt of a secondary bicyclic amine alcohol, endo-8-Azabicyclo[3.2.1]octan-3-ol hydrochloride is expected to present as a white to off-white crystalline solid at ambient conditions. The compound is anticipated to be freely soluble in water and polar protic solvents such as methanol and ethanol, reflecting the ionic nature of the protonated nitrogen and the hydrogen-bond-donor capacity of the hydroxyl group.

Researchers should store the compound under cool, dry conditions, protected from moisture and light, in a tightly sealed container. Standard laboratory safety precautions apply when handling fine organic hydrochloride powders, including the use of appropriate personal protective equipment (PPE) such as gloves, safety glasses, and a laboratory coat. Consult the Safety Data Sheet (SDS) before use.

For solution preparation, dissolution in deionised water or aqueous buffer is recommended as a first approach. For non-aqueous applications, DMSO may serve as an alternative solvent. Specific solubility data should be verified experimentally under the intended assay conditions.

Research Applications in Medicinal Chemistry

The azabicyclo[3.2.1]octane scaffold, to which this compound belongs, is a recognised pharmacophore and building block in drug discovery. Its rigid bicyclic framework constrains the amine nitrogen and pendant substituents in defined three-dimensional orientations, enabling selective engagement with biological targets including receptors, enzymes, and ion channels.

The free hydroxyl group at C-3 in the endo configuration provides a versatile handle for further chemical elaboration. Standard transformations include O-acylation, O-sulfonylation, O-alkylation, oxidation to the ketone, and conversion to leaving-group-bearing intermediates, enabling access to diverse analogue libraries for structure–activity relationship (SAR) studies.

Compounds based on the tropane and nortropane skeleton have historically been associated with central nervous system (CNS) pharmacology, including interactions with monoamine transporters and muscarinic receptors. The present compound, as a nortropanol derivative (nitrogen unsubstituted at N-8 in the salt form), serves as a versatile N-functionalisation precursor, allowing medicinal chemists to introduce diverse N-substituents via reductive amination, acylation, or alkylation to probe receptor selectivity.

This compound is listed with reference to E190926 in the Aladdin catalogue, suggesting structural or synthetic relatedness to that compound; researchers are encouraged to consult both entries when designing synthetic routes.

Ordering and Quality Information

endo-8-Azabicyclo[3.2.1]octan-3-ol hydrochloride is available from Aladdin Scientific under SKU E421612. Researchers requiring related structural analogues or reference compounds are directed to SKU E190926 as noted in the product description.

Aladdin Scientific supplies research-grade reagents intended for laboratory and research use only, not for clinical, diagnostic, or human consumption purposes. For questions regarding purity specifications, available pack sizes, certificates of analysis (CoA), or bulk pricing, please contact Aladdin Scientific customer support or consult the product listing on the Aladdin website.

All orders are subject to Aladdin Scientific standard terms and conditions covering payment, shipping, returns, and refunds. Customers are encouraged to review current shipping and storage requirements to ensure compound integrity upon receipt.