Analysis Note

Color (visual): white to slight yellow to beigeAppearance of substance (visual): powderIdentity (IR): passes testEnantiomeric purity: ≥ 99.0 % (a/a)Purity (TLC(011A)): ≥ 97 %Purity (TLC(0811)): ≥ 97 %Assay (HPLC, area%): ≥ 95.0 % (a/a)Solubility (1 mmole in 2 ml DMF): clearly solubleAssay (acidimetric): ≥ 90.0 %Water (K. F.): ≤ 2.0 %For TLC-Systems see our General Catalog

General description

Quasi-orthogonally-protected Glu derivative.

The 2-PhiPr group can be removed selectively in the presence of tBu-based protecting groups by treatment with 1% TFA in DCM [1], making this derivative an extremely useful tool for the preparation of cyclic peptides by Fmoc SPPS [2] or for library synthesis. For the on-resin synthesis of side-chain to side-chain lactam bridged peptides, the combination of Lys(Mtt) and Glu(O-2-PhiPr) is particularly advantageous since both side-chains can be simultaneously unmasked in a single step.

The product number for this product was previously 04-12-1199.

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Legal Information

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

Linkage

Replaces: 04-12-1199