Peptide synthesis and process development from milligram quantities through kilogram-scale synthesis.

Peptide Chemistry

BioDuro supports peptide programs ranging from linear sequences to complex cyclic, modified, and conjugated peptides. Synthesis and purification strategies are developed around the structure of the peptide, required quantity, target purity, and intended use.

Capabilities include solid-phase peptide synthesis (SPPS), liquid-phase peptide synthesis (LPPS), cyclization, specialized modifications, conjugation, purification, process development, and scale-up.

Drug Substance Process Development

BioDuro develops peptide synthesis processes using SPPS, LPPS, and hybrid approaches, with strategies tailored to the structural and process requirements of each molecule.

Our process development capabilities support a broad range of peptide modalities, including linear, cyclic and macrocyclic, modified, and conjugated peptides, as well as complex chemistries involving unnatural amino acids and other structural modifications.

Scale-Up & Drug Substance Manufacturing

At kilolab scale, BioDuro translates laboratory processes into manufacturing-ready workflows, integrating synthesis and purification to address scale-dependent challenges early and facilitate efficient technology transfer into GMP production.

Commercial GMP manufacturing extends this process knowledge into large-scale production, preparative purification, and downstream operations, helping preserve process robustness and product quality while enabling reliable supply as programs advance.

Drug Product Development

Peptide formulation development requires strategies tailored to the molecule’s physicochemical properties and intended delivery route. BioDuro addresses key peptide development challenges through formulation and product development approaches.

Poor Oral Bioavailability

Permeation enhancers, pH modulation, lipid-based delivery systems, ASD, particle size reduction, and site-specific delivery strategies.

Chemical & Physical Instability

pH optimization, excipient screening, oxygen/light control, lyophilization, and formulation screening to improve storage stability.

Aggregation & Adsorption Risk

Surfactant selection, ionic strength adjustment, container-closure compatibility, and control of bubbles, silicone oil, and shear stress.

Decision Uncertainty

Concentration and viscosity optimization, device compatibility assessment, injection force evaluation, and dose accuracy support.

Hit Identification

The process of finding compounds that interact with a biological target, such as a protein.

Hit to Lead

Through evaluation and modification of “hit” compounds to enhance their potential.

Lead Optimization

Further refinement of a compound’s properties to develop a drug candidate.

Patent filing support

Guidance through the patent filing process for new drug compounds.

Solid-Phase and Liquid-Phase Peptide Synthesis

BioDuro offers both solid-phase peptide synthesis and liquid-phase peptide synthesis, allowing the development approach to be selected around peptide complexity, quantity, and scale-up requirements.

Solid-phase peptide synthesis capabilities extend to 800 mmol and support linear peptides, cyclic peptides, and peptide drug conjugates. Liquid-phase peptide synthesis is also available for projects where it provides a practical route to larger-scale production.

Purity and Product Options

Peptide purity requirements vary depending on whether the material will be used for initial research, biological testing, analytical standards, or later-stage development.

BioDuro offers peptide products at purity targets such as greater than 90%, 95%, and 98%, depending on sequence, complexity, scale, and intended application. Available product options include multiple salt forms and a broad range of modifications and conjugates.

Final specifications and timelines are established after reviewing the peptide sequence, required quantity, target purity, modifications, and analytical requirements.

Connected Peptide Development Services

Peptide programs can also draw on BioDuro’s Biology, DMPK, and Formulation capabilities. This allows synthesized peptides to move into biochemical and cellular testing, in vivo evaluation, developability assessment, and oral peptide formulation work when required.

BioDuro’s formulation team also supports oral peptide delivery approaches, including enteric coating and permeability-enhancement strategies.

PTI Symphony X

  • 0.1-0.2 mmol
  • N2 protection
  • 24 channels

CEM MultiPep2

  • 0.1-0.2 mmol
  • N2 protection
  • 24 channels

Tetras Volo

  • 0.1-0.2 mmol
  • N2 protection
  • 24 channels

DL-PSI-286

  • 0.1-0.2 mmol
  • N2 protection
  • 24 channels

Download our full Medicinal Chemistry Fact Sheet

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Small libraries

  • 10 – 50mg of each compound
  • Purity – ≥90% (95% if desired) by HPLC/LC-MS for all compounds
  • 1H-NMR for 5- 10% (or more, if required) of the compounds

Large libraries

  • 10mg of each compound
  • Purity – ≥85% by (90% if desired) HPLC/LC-MS for all compounds
  • In general 1H-NMR for 5 – 10% of the compounds

42-Step Liquid-Phase Synthesis: Achieving 99% Purity

Challenge: Synthesizing the reference peptide MK-0616. Solution: Our team deployed a specialized liquid-phase strategy to overcome aggregation issues, delivering the target at >99% purity.

42-Step Liquid-Phase Synthesis: Achieving 99% Purity

Challenge: Synthesizing the reference peptide MK-0616. Solution: Our team deployed a specialized liquid-phase strategy to overcome aggregation issues, delivering the target at >99% purity.

Partnership solutions

Flexible ways to engage our chemistry teams

Integrated Drug Discovery (IDD)

Strategic leadership from target to candidate.

Let our project leaders drive the full DMTA cycle. We coordinate chemistry, biology, and DMPK to accelerate your path from Hit to PCC.

Functional Service Provider (FSP)

Dedicated scientists working exclusively on your systems.

Extend your internal capacity with a dedicated team of BioDuro-Sundia chemists working exclusively on your projects and systems.

IND-Enabling Programs

A complete safety & tox package for regulatory submission.

streamlined transition from PCC to IND. We combine GLP-tox batch synthesis with safety assessment to get you regulatory-ready in record time.