Collection: Specialized Building Blocks for Drug Discovery

Specialized Building Blocks for Drug Discovery — compiles synthetic building blocks with three-dimensional cage frameworks such as bicyclo[1.1.1]pentane, bicyclo[2.1.1]hexane, bicyclo[3.1.1]heptane, and cubane, which serve as replacements for aromatic rings or alkenes in the design of bioactive molecules. These rigid frameworks provide new three-dimensional geometry for candidate compound designers.

These building blocks are widely used by medicinal chemists to replace phenyl rings in molecular designs to improve pharmacokinetic properties and avoid oxidative metabolism without changing the spatial geometry of the substituents. Carboxylic acid, amine, and boronate ester derivatives on these frameworks facilitate coupling reactions and further derivatization in structure-activity optimization programs in lead compound research laboratories.

Example products in this collection: TCI B5479 22287-35-0 Bicyclo[1.1.1]pentan-1-amine Hydrochloride, TCI B6415 1000931-72-5 4-[(tert-Butoxycarbonyl)amino]-1-cubanecarboxylic Acid, TCI A3655 676371-65-6 Methyl 3-Aminobicyclo[1.1.1]pentane-1-carboxylate Hydrochloride, TCI B6522 56842-95-6 Bicyclo[1.1.1]pentane-1,3-dicarboxylic Acid, TCI P3129 Potassium Trifluoro[5-(methoxycarbonyl)bicyclo[3.1.1]heptan-1-yl]borate, TCI B6523 1638767-25-5 tert-Butyl (3-Aminobicyclo[1.1.1]pentan-1-yl)carbamate, TCI P3128 Potassium Trifluoro[4-(methoxycarbonyl)bicyclo[2.1.1]hexan-1-yl]borate, TCI B6607 1035325-28-0 5-[(tert-Butoxycarbonyl)amino]bicyclo[3.1.1]heptane-1-carboxylic Acid.

Pay attention to the terminal functional groups (acid, amine, or boronate ester) as well as salt forms such as hydrochloride, because these determine the ease of derivatization reactions in the next synthesis step. All products are genuine Tokyo Chemical Industry (TCI) Japan products, with purity, packaging, and storage conditions listed on each item's page.

Other categories at the same level under Building Blocks for Organic Synthesis, often used together in a single laboratory workflow:

• Non-Heterocyclic Building Blocks
• Heterocyclic Building Blocks
• Fluorinated Building Blocks

This collection is further divided into 4 more specific groups:

• Bicyclo[1.1.1]pentane Building Blocks
• Cubane Building Blocks
• Bicyclo[2.1.1]hexane Building Blocks
• Bicyclo[3.1.1]heptane Building Blocks

Return to Building Blocks for Organic Synthesis. For large-volume procurement, special packaging, or specific grades, contact the AMI Scientific team — the official TCI Japan distributor in Indonesia — for stock availability checks and direct lead times from Japan.