Amino Acids, Nucleosides and Nucleotides

Amino Acids

We offer Fmoc-protected unnatural amino acids for the synthesis of peptides for biological research and pharmaceutical development. By introducing conformational constraints, the peptides may have one or several of the following features: 1. enhancement of peptide backbone helicity for better target binding; 2. tunable hydrophobicity for desired cellular permeability and cytotoxicity; and 3. enhancement of peptide stability against proteolytic breakdown.

Nucleosides and Nucleoside Phosphoramidites

We offer nucleosides with modifications in both the nucleic acid base and the sugar component of the molecules. Nucleoside phosphoramidites are extremely useful chemical building blocks for the chemical synthesis of RNA-targeting drugs such as antisense oligonucleotides, aptamers, and siRNAs which have exhibited promises for treating diseases including muscular dystrophy, neuropathies, and macular degeneration.

Nucleotides

dNTP, NTP, and modified nucleotides have exhibited a wide range of applications in PCR, RT-PCR, cRNA synthesis, RCA, MDA, DNA labeling, and sequencing. dNTPs are chemical building blocks in the commercial manufacture of mRNA vaccines using in vitro transcription method.

Inquire about our bulk quantities for the manufacture of oligonucleotide drug ingredients and large-scale production of mRNAs.

  • Amino Acids for Stapled Peptides
  • 2-Methylated Amino Acids
  • Peptide Labeling
  • Other Unnatural Amino Acids
  • Nucleosides
  • HNA Precursors
  • Morpholino Nucleosides
  • Nucleoside Phosphoramidites and Nucleotides
  • Other Unnatural Amino Acids

    Structure Details
    Product Name: Piperidine-1,4-dicarboxylic acid mono t-butyl ester
    Order number: RT-PE-005
    CAS: 84358-13-4
    Purity: >=95%
    Appearance: solid
    MF: C11H19NO4
    MW: 229.276
    MP: 149 oC

    Description:
    This is a Boc-protected unnatural amino acid.
    Product Name: Droxidopa
    Order number: RT-R04-029
    CAS: 23651-95-8
    Purity: >=95%
    Appearance: solid
    MF: C9H11NO5
    MW: 213.189
    MP: 225 oC

    Description:
    This compound can be a useful chiral starting material. Biologically, it is a substrate of dopodehydroxylase to convert to norepinephrine within sympathetic terminals.
    Product Name: Methyl-(2s,4s)-4-fluoro-2-prolinate
    Order number: RT-R06-362
    CAS: 58281-79-1
    Purity: >=95%
    Appearance: solid
    MF: C6H11ClFNO2
    MW: 183.607
    MP: n.a. oC

    Description:
    The fluorine with strong inductive effect can enforce a particular ring pucker and accelerate cis/trans prolyl peptide bond isomerization, thereby providing conformational stability for peptides and p