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8.52072

Sigma-Aldrich

Fmoc-Asp-OAll

Novabiochem®

Synonym(s):

Fmoc-Asp-OAll, N-α-Fmoc-L-aspartic acid α-allyl ester

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About This Item

Empirical Formula (Hill Notation):
C22H21NO6
CAS Number:
Molecular Weight:
395.41
MDL number:
UNSPSC Code:
12352209
NACRES:
NA.22

Pricing and availability is not currently available.

Quality Level

product line

Novabiochem®

Assay

≥97.0% (acidimetric)
≥98% (TLC)
≥98.0% (HPLC)

form

powder

reaction suitability

reaction type: Fmoc solid-phase peptide synthesis

manufacturer/tradename

Novabiochem®

mp

95 °C (decomposes)

application(s)

peptide synthesis

functional group

carboxylic acid

storage temp.

2-30°C

General description

Orthogonally-protected building block for the synthesis of head-to-tail cyclic peptides [1,2,3,4,5] by Fmoc SPPS. The α-allyl ester can be selectively removed in the presence of Fmoc- and tBu-based protecting groups by treatment with Pd(Ph3P)4/ CHCl3/AcOH/NMM [6], thereby facilitating the synthesis of branched esters, amides, lactones and lactams incorporating an aspartyl unit.

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

Literature references

[1] W. Bannwarth, et al. (1992) Tetrahedron Lett., 33, 4557.
[2] F. Albericio, et al. (1993) Tetrahedron Lett., 34, 1549.
[3] J. Eichler, et al. (1994) Pept. Res., 7, 300.
[4] J. Eichler, et al. in ′Peptides 1994, Proc. 23rd European Peptide Symposium′, H. Maia (Eds), ESCOM, Leiden, 1994, pp. 461.
[5] J. Eichler, et al. in ′Solid Phase Synthesis & Combinatorial Libraries, 4th International Symposium′, R. Epton (Eds), Mayflower Scientific Ltd., Birmingham, 1996, pp. 201.
[6] S. A. Kates, et al. in ′Peptides, Chemistry, Structure & Biology, Proc. 13th American Peptide Symposium′, ESCOM, Leiden, 1994, pp. 113.

Linkage

Replaces: 04-12-1157

Analysis Note

Color (visual): white to slight yellow to beige
Appearance of substance (visual): powder
Identity (IR): conforms
Enantiomeric purity: ≥ 99.0 % (a/a)
Purity (TLC(CMA2)): ≥ 98 %
Purity (TLC(157A)): ≥ 98 %
Assay (HPLC, area%): ≥ 98.0 % (a/a)
Solubility (1 mmole in 2 ml DMF): clearly soluble
Assay (acidimetric): ≥ 97.0 %
Water (K. F.): ≤ 1.5 %

To see the solvent systems used for TLC of Novabiochem® products please click here.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Articles

Novabiochem® offers orthogonally protected amino acids for peptide synthesis, including cyclic and branched peptides.

Novabiochem® offers orthogonally protected amino acids for peptide synthesis, including cyclic and branched peptides.

Novabiochem® offers orthogonally protected amino acids for peptide synthesis, including cyclic and branched peptides.

Novabiochem® offers orthogonally protected amino acids for peptide synthesis, including cyclic and branched peptides.

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