Bridged Ring
Your Professional Bridged Ring Supplier!
We are Aeechem, a global leader in the research, development, and production of high-value pharmaceutical intermediates and building blocks. Headquartered in Nanjing, China, with a dedicated R&D center and GMP-compliant manufacturing in India, we combine custom synthesis expertise with scalable production to empower innovative biotech and pharma companies worldwide.
Why Choose Us
Manufacturing Capability
Aeechem supports the full development process from laboratory research to commercial-scale production.From milligram samples for early-stage research to multi-ton commercial production, our integrated, GMP-compliant facilities ensure seamless scale-up and consistent quality.
Reliable Supply
The importance of timely delivery and clear communication in pharmaceutical sourcing. By combining responsive technical support with flexible production capacity, Aeechem serves customers across global markets with dependable project execution and long-term supply stability.
Advanced technology
Aeechem focuses on high-value intermediates and complex building blocks for innovative drug development. Our continuous investment in research and proprietary molecules allows customers to access a growing portfolio of advanced compounds for both R&D and commercial needs.
Common types
We offers the following product introduce:

![productcate-1-1 5-Aminobicyclo[3.1.1]heptane-1-carboxylic Acid Hydrochloride](https://www.aeechem.com/uploads/44503/5-aminobicyclo-3-1-1-heptane-1-carboxylic3b344.png)
![productcate-1-1 Methyl 5-(hydroxymethyl)bicyclo[3.1.1]heptane-1-carboxylate](https://www.aeechem.com/uploads/44503/methyl-5-hydroxymethyl-bicyclo-3-1-1-heptanee2736.png)

Gibberellin A7
Gibberellin A7 is a naturally occurring pentacyclic diterpenoid and a member of the gibberellin family of plant hormones. It was first isolated from culture filtrates of the fungus Gibberella fujikuroi and is responsible for promoting various growth and developmental processes in plants. As a C19-gibberellin, it is characterized by its complex fused-ring structure which includes a carboxylic acid, a lactone, and a hydroxyl group. It differs structurally from gibberellin A1 by lacking a hydroxyl group at a specific position. Gibberellin A7 acts as a growth modulator, influencing processes such as stem elongation, seed germination, and the response to injuries and parasitism.
5-Aminobicyclo[3.1.1]heptane-1-carboxylic Acid Hydrochloride
5-Aminobicyclo[3.1.1]heptane-1-carboxylic acid hydrochloride (CAS No. 2375193-32-9) is a conformationally constrained β-amino acid derivative built on a noradamantane scaffold. This structure, featuring a primary amine and a carboxylic acid on a rigid, aliphatic cage, is designed to induce specific secondary structures in peptides and serve as a versatile chiral building block.
Methyl 5-(hydroxymethyl)bicyclo[3.1.1]heptane-1-carboxylate
Methyl 5-(hydroxymethyl)bicyclo[3.1.1]heptane-1-carboxylate(CAS No.2091771-31-0)is a noradamantane(bicyclo[3.1.1]heptane)derivative functionalized with a methyl ester at the 1-position and a hydroxymethyl group at the 5-position.This structure provides a rigid,three-dimensional aliphatic scaffold with two orthogonal reactive handles(ester and alcohol),making it a valuable chiral building block for fragment-based drug discovery and materials science.
Product Specification
We offers the following product specifications:
|
Product Name |
Gibberellin A7 |
|
CAS Number |
510-75-8 |
|
Molecular Formula |
C19H22O5 |
|
Molecular Weight |
330.38 |
|
SMILES Code |
OC([C@H]1[C@]2([C@@]3([C@]4([C@]15C[C@@H](CC4)C(C5)=C)[H])OC([C@]2(C)[C@@H](O)C=C3)=O)[H])=O |
|
MDL No. |
MFCD00133364 |
|
Product Name |
5-Aminobicyclo[3.1.1]heptane-1-carboxylic acid hydrochloride |
|
CAS Number |
2375193-32-9 |
|
Molecular Formula |
C8H14ClNO2 |
|
Molecular Weight |
191.66 |
|
SMILES Code |
O=C(C12CC(C2)(N)CCC1)O.[H]Cl |
|
MDL No. |
MFCD3217332 |
Application
Peptidomimetic Drug Design
Incorporated into peptides to replace flexible amino acids, inducing stable turn or helical structures that enhance proteolytic stability and binding affinity for challenging targets like protein-protein interfaces in oncology.
Chiral Resolution Agent
The hydrochloride salt is used to resolve racemic mixtures of acidic pharmaceuticals via diastereomeric salt formation, particularly for NSAIDs like naproxen, on an industrial scale.
![Methyl 5-(hydroxymethyl)bicyclo[3.1.1]heptane-1-carboxylate Methyl 5-(hydroxymethyl)bicyclo[3.1.1]heptane-1-carboxylate](https://www.aeechem.com/uploads/44503/methyl-5-hydroxymethyl-bicyclo-3-1-1-heptanee2736.png?size=700x0)
Monomer for High-Performance Polyamides
Polymerized with aromatic diacids to yield semi-crystalline polyamides (nylons) with high glass transition temperatures and transparency, suitable for engineering plastics in automotive and optical lens applications.
Linker for Solid-Phase Synthesis
Functionalized to serve as a rigid, acid-cleavable linker in combinatorial chemistry and peptide synthesizers, improving coupling efficiency and purity for library generation in drug discovery.
Certifications







Package & Delivery
Package: Standard export package or Custom
Delivery: By air express, by sea

FAQ
As one of the leading bridged ring manufacturers and suppliers in China, we also support customized service. Please feel free to buy high quality bridged ring made in China here from our factory. For quotation and free sample, contact us now.
1 5 dimethyl Bicyclo 3 1 1 heptane 1 5 dicarboxylate, 5 Aminobicyclo 3 1 1 heptane 1 carboxylic Acid Hydrochloride, O C C1 C2 CCCC2 CO C1 OC







![2-Methyl-4H-benzo[d][1,3]oxazin-4-one](/uploads/44503/small/2-methyl-4h-benzo-d-1-3-oxazin-4-one9bb4d.png?size=118x0)

![5-Aminobicyclo[3.1.1]heptane-1-carboxylic Acid Hydrochloride](/uploads/44503/small/5-aminobicyclo-3-1-1-heptane-1-carboxylic3b344.png?size=400x0)
![1,5-dimethyl Bicyclo[3.1.1]heptane-1,5-dicarboxylate](/uploads/44503/small/1-5-dimethyl-bicyclo-3-1-1-heptane-1-548a28.png?size=400x0)
![Methyl 5-(hydroxymethyl)bicyclo[3.1.1]heptane-1-carboxylate](/uploads/44503/small/methyl-5-hydroxymethyl-bicyclo-3-1-1-heptanee2736.png?size=400x0)
![Methyl 5-((tert-butoxycarbonyl)amino)bicyclo[3.1.1]heptane-1-carboxylate](/uploads/44503/small/methyl-5-tert-butoxycarbonyl-amino-bicyclo-340af0.png?size=400x0)
![Methyl 5-bromobicyclo[3.1.1]heptane-1-carboxylate](/uploads/44503/small/methyl-5-bromobicyclo-3-1-1-heptane-11c48a.png?size=400x0)