Amino Acids and Nucleosides

We offer FMOC-protected unnatural amino acids for 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.

We offer nucleosides with modifications at the pyrimidine or purine base, such as 6- Thioguanine, 7-Deazaadenine, 7-Deazaguanine, 8-Azidoadenine, 8-Bromoinosine and 8- Iodoadenine, and at the sugar such as 5'-Azido-5'-deoxythymidine, 2'-Azido-2'-deoxyuridine and 2'-Azido-2'-deoxy-5-methyl uridine.

2-Methylated Amino Acids

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Structure	Details
	Product Name: (S)-2-Amino-2-methyl-3-phenylpropionic acid Order number: 204651 CAS: 23239-35-2 Purity: >=95% Appearance: solid MF: C10H13NO2 MW: 179.219 MP: n.a. oC Description: Steric amino acid to form stable peptide bond against proteolytic breakdown. Login to check availability and price information.
	Product Name: (R)-2-Amino-2-methyl-3-phenylpropionic acid Order number: 204652 CAS: 17350-84-4 Purity: >=95% Appearance: solid MF: C10H13NO2 MW: 179.219 MP: n.a. oC Description: Steric amino acid to form stable peptide bond against proteolytic breakdown. Login to check availability and price information.
	Product Name: (S)-N-Fmoc-2-amino-2-methyl-3-phenylpropionic acid Order number: 204653 CAS: 135944-05-7 Purity: >=95% Appearance: solid MF: C25H23NO4 MW: 401.462 MP: n.a. oC Description: Fmoc-protected solid-phase amenable steric amino acid is used to form stable peptide bond against proteolytic breakdown. Login to check availability and price information.
	Product Name: (R)-N-Fmoc-2-amino-2-methyl-3-phenylpropionic acid Order number: 204654 CAS: 152436-04-9 Purity: >=95% Appearance: solid MF: C25H23NO4 MW: 401.462 MP: n.a. oC Description: Fmoc-protected solid-phase amenable steric amino acid is used to form stable peptide bond against proteolytic breakdown. Login to check availability and price information.
	Product Name: Boc-2-methyl-L-phenylalanine Order number: 204655 CAS: 53940-88-8 Purity: >=95% Appearance: solid MF: C15H21NO4 MW: 279.336 MP: n.a. oC Description: Boc-protected steric amino acid is used to form stable peptide bond against proteolytic breakdown. Login to check availability and price information.
	Product Name: Boc-2-methyl-D-phenylalanine Order number: 204656 CAS: 111771-58-5 Purity: >=95% Appearance: solid MF: C15H21NO4 MW: 279.336 MP: n.a. oC Description: Boc-protected steric amino acid is used to form stable peptide bond against proteolytic breakdown. Login to check availability and price information.

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