General description

This orthogonally-protected lysine derivative is based on the hindered Dde variant ivDde. It has very similar chemical properties to Fmoc-Lys(Dde)-OH, except that the side-chain ivDde group is considerably more stable to piperidine than Dde, and is less prone to migrate from protected to unprotected lysine side-chains ^[1].When removing ivDde in the presence of allyl based protecting groups, allyl alcohol should be included in the deprotection solution to prevent reduction of the allyl group ^[2].

Associated Protocols and Technical Articles
Cleavage and Deprotection Protocols for Fmoc SPPS

Literature references

^[1] S. R. Chhabra, et al. (1998) Tetrahedron Lett., 39, 1603.
^[2] B. Rohwedder, et al. (1998) Tetrahedron Lett., 39, 1175.
^[3] V. Wittmann & S. Seeberger (2000) Angew. Chem. Int. Ed. Engl., 39, 4348.

Linkage

Replaces: 04-12-1193

Analysis Note

Color (visual): white to slightly yellow to beige
Appearance of substance (visual): powder
Identity (IR): passes test
Enantiomeric purity: ≥ 99.5 % (a/a)
Purity (TLC(157B)): ≥ 97 %
Purity (TLC(CMA2)): ≥ 97 %
Assay (HPLC, area%): ≥ 99.0 % (a/a)
Solubility (1 mmole in 2 ml DMF): clearly soluble
Assay (acidimetric): ≥ 85.0 %
Water (K. F.): ≤ 1.00 %

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