(S)-4-(tert-Butoxycarbonyl)-1,4-oxazepane-2-carboxylic acid

CAS Number: 1273567-44-4
Category: Brensocatib Intermediates
Synonyms: (S)-4-(tert-Butoxycarbonyl)-1,4-oxazepane-2-carboxylic acid (also commonly written as (2S)-4-[(tert-butoxy)carbonyl]-1,4-oxazepane-2-carboxylic acid).
✓ GMP-compliant ✓ Commercial supply&ample stock ✓ Various Packaging Available ✓ Factory documentation support

Product Specifications

CAS Number1273567-44-4
Molecular FormulaC11H19NO5
Molecular Weight245.27
Purity 98%
AppearanceWhite to off-white solid
Storage Conditions2-8°C
PackageFrom 100g/bottle to 25kg/drum

Product Overview

CAS 1273567-44-4   (S)-4-(tert-Butoxycarbonyl)-1,4-oxazepane-2-carboxylic acid (also commonly written as (2S)-4-[(tert-butoxy)carbonyl]-1,4-oxazepane-2-carboxylic acid).

Applications

Choral Non-Natural Amino Acid Scaffold: Features a 7-membered bicyclic/heterocyclic oxazepane core with defined (S)-stereochemistry at the C2 position, offering unique conformational rigidity compared to standard linear or 5-/6-membered ring systems.

Protecting Group Design: The ring nitrogen at position 4 is orthogonally protected with a Boc (tert-butoxycarbonyl) group, while the free carboxylic acid allows direct amide coupling or derivatization.

Pharmaceutical Intermediate: Serves as a key chiral building block in drug discovery and medicinal chemistry research, most notably used as an intermediate in the synthesis of small-molecule therapeutics such as Brensocatib (a cathepsin C inhibitor).

Quality Assurance

Can be tested according to the customer’s method of analysis.

Certificate of Analysis (COA) and Material Safety Data Sheets (MSDS) provided upon request.