Custom Carbohydrate Synthesis
Overview
Advanced chemical and enzymatic methods have enabled the synthesis of various saccharides. CD BioGlyco has developed highly integrated approaches that can combine chemical and enzymatic methods to quickly compose saccharide-related products. We can complete small (mg) and large (g) quantities of saccharides and transfer the technology to a bulk manufacturing plant. All our final products will be thoroughly analyzed by our advanced technologies such as mass spectrometry and high field NMR to ensure quality.
Our team of professionals, most with a Ph.D. degree, is highly skilled in the areas of carbohydrate, nucleosidation, glycosylation, high purity complex products, and synthetic route development. We are proficient in the design and customization of complex multi-step reaction schemes and provide customers with customized overall solutions in the fields of biopharmaceuticals, therapy, and diagnosis to develop saccharides and saccharide-related molecules.
Key Technologies
Enzymatic synthesis; Chemical synthesis
Precision-Crafted Sugars, Scientifically Defined
We leverage a comprehensive array of established and innovative techniques to ensure the successful and efficient construction of even the most challenging carbohydrate structures. Our core technologies include both enzymatic and chemical synthesis approaches. Enzymatic synthesis offers unparalleled stereo- and regioselectivity, mimicking natural biosynthetic pathways to create complex glycans with high fidelity.
Workflow
Case Study: High-Precision Custom Synthesis of Complex Carbohydrate Derivatives
- Background
Carbohydrate derivatives are invaluable tools in glycobiology, medicinal chemistry, and drug discovery. However, their synthesis presents notorious challenges due to multiple hydroxyl groups requiring precise stereochemical and regioselective manipulation. A client approached CD BioGlyco, requiring a structurally diverse library of custom carbohydrate derivatives. The request demanded the parallel synthesis of core parent molecules and their respective chemically modified counterparts to support their downstream biological evaluations.
- The Challenge
The project required the design, synthesis, and strict quality control of 22 target carbohydrate derivative compounds in parallel. The structural diversity consisted of two main series:
- 11 Core Parent Compounds: Featuring variations in functional groups attached to the carbohydrate ring (including primary amides, secondary amides with methyl, ethyl, and propyl chains, as well as distinct bulky branched alkyl chains like tert-butyl, sec-butyl, and isobutyl groups).
- 11 Acetylated Derivatives: The completely acetylated forms corresponding to each core parent molecule, demanding absolute conversion and high purity.
The primary hurdle lay in achieving high purity across varying scales (ranging from 2 mg to over 50 mg) while dealing with structurally delicate functional groups and differing physical properties.
- Our Solution & Synthesis Strategy
Leveraging our advanced carbohydrate chemistry platform, our technical team established a robust protocol to execute the custom organic synthesis. Our expert chemists successfully completed the multi-step synthesis for all 22 target compounds:
- Functional Group Fine-Tuning: Precise control over nitrogen- and carbon-linked substitutions on the glycone backbone, navigating from unalkylated amides up to long-branched alkyl side chains.
- Regioselective Acetylation: Designed optimal esterification pathways to smoothly convert the core molecules into their corresponding fully acetylated target derivatives without affecting neighboring functional groups or risking epimerization.
- Results & Quality Control Specifications
All 22 target compounds were successfully delivered, meeting or exceeding the structural validation and purity requirements specified by the client. Every single batch underwent rigorous analytical screening using state-of-the-art liquid chromatography-mass spectrometry (LC-MS) and high-resolution proton nuclear magnetic resonance spectroscopy (1H NMR).
| Compound_ID | molecular weight | Amount_(mg) | Purity | Form |
|---|---|---|---|---|
| Target 1 | xxx | 2.67 | 99.0% | White solid |
| Target 2 | xxx | 27.80 | 98.0% | White solid |
| Target 3 | xxx | 16.54 | 98.0% | White solid |
| Target 4 | xxx | 41.36 | 99.0% | White solid |
| Target 5 | xxx | 6.51 | 97.0% | White solid |
| ... | ... | ... | ... | ... |
Fig.1 LC-MS spectrum of Target 1. (CD BioGlyco)
Fig.2 1H NMR spectrum of Target 1 (DMSO). (CD BioGlyco)
Fig.3 1H NMR spectrum of Target 1 (DMSO-D2O). (CD BioGlyco)
- Client Project Management & Experience
At CD BioGlyco, we value scientific transparency and reliable execution:
- Seamless Onboarding: The client was paired with a senior project manager who designed a customized synthetic protocol aligned precisely with their target structural requirements.
- Active Communication: Regular progress reports were delivered to keep the client updated on intermediate steps and quality control milestones.
- IP Protection: Full intellectual property rights and raw analytical files were safely transferred to the client upon project completion under strict confidentiality terms.
Publication Data
DOI.: 10.3390/catal10101142
Technology: Solvent-free reaction
Journal: Catalysts
IF: 3.8
Published: 2020
Results: This comprehensive review explores solvent-free methodologies in carbohydrate synthetic chemistry, emphasizing the pivotal role of catalysis in enhancing reactivity and selectivity. The authors analyze a wide range of solvent-free techniques, including mechanochemical ball milling, melt reactions, and catalytic solid-state processes, for key transformations such as protecting group manipulations (acylations, acetalations, benzylations), glycosylations, glycoconjugations, and biomass depolymerization. Crucially, the review highlights how catalysts (e.g., Lewis acids like In(OTf)3, Yb(OTf)3; solid acids; enzymes; organotin reagents) enable precise control over regioselectivity and stereoselectivity in these solvent-free environments, often offering advantages like simplified procedures, improved yields, or unique selectivity profiles compared to traditional solvent-based methods. The work underscores the growing potential of solvent-free, catalytically driven approaches as sustainable and efficient strategies for constructing complex carbohydrates and valorizing biomass-derived sugars.
Applications
- Generating fluorescently or radio-labeled glycans to track metabolism, localization, and interactions within cells and organisms.
- Creating affinity tags (e.g., biotinylated glycans) for isolating and characterizing glycan-binding proteins.
- Developing activity-based probes (ABPs) for studying enzyme activity in complex biological samples.
Advantages of Us
- Expertise in both enzymatic synthesis (for natural fidelity) and advanced chemical synthesis (for diverse scaffolds) provides unmatched flexibility.
- Enzymatic synthesis utilizing glycosyltransferases/glycosidases ensures unparalleled stereo- and regioselectivity, enabling complex structures.
- The integrated approach combining synthesis and advanced analytics guarantees stringent quality control, optimizing yield, purity, and structural integrity.
Frequently Asked Questions
Associated Services
The synthesis laboratory at CD BioGlyco uses the most advanced synthesis technology to provide customers with the customized synthesis of oligosaccharides, polysaccharides, sugar-nucleotides, and carbohydrate antigens. Our mission is to help academic laboratories and industries explore the biological and pharmaceutical effects of saccharides. If you have any further queries, please contact us directly for more detailed information.
Reference
- Traboni, S.; et al. Solvent-free approaches in carbohydrate synthetic chemistry: role of catalysis in reactivity and selectivity. Catalysts. 2020, 10(10): 1142. (Open Access)
