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Cysteamine 2-chlorotrityl resin

Novabiochem®

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About This Item

UNSPSC Code:
12352101
NACRES:
NA.22

Quality Level

product line

Novabiochem®

form

beads

reaction suitability

reaction type: Fmoc solid-phase peptide synthesis

manufacturer/tradename

Novabiochem®

application(s)

peptide synthesis

functional group

amine

storage temp.

2-8°C

General description

An acid-labile resin for the preparation of N-acyl or N-alkyl cysteamines. The free amino functionality of the resin-bound cysteamine can be readily acylated or reductively alkylated using standard procedures. Cleavage can be effected with electrophilic oxidants such as I2 or Tl(3) to produce a dimeric disulfide bridged product, or with 50-100% TFA to give the monomeric sulfhydryl product. Peptidylaminoethylthiols produced in this manner have been used to prepare PEG-conjugates by chemoselective ligation to pegylated maleimide [1]. This method is particularly useful for forming intramolecular disulfide bridges in molecules containing two thiol groups where one is protected with Acm. For a similar application, see [2,3,4].

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

Literature references

[1] J. Zhang, et al. Poster 162 presented at the 16 American Peptide Symposium, Minneapolis, 1999.
[2] A. v. Vliet, et al. in ′Innovation & Perspectives in Solid Phase Synthesis, 2nd International Symposium′, R. Epton (Eds), Intercept UK Ltd., Andover, 1992, pp. 475.
[3] A. v. Vliet, et al. in ′Peptides 1992, Proc.22nd European Peptide Symposium′, C. H. Schneider & A. N. Eberle (Eds), ESCOM, Leiden, 1993, pp. 279.
[4] A. v. Vliet, et al. in ′Peptides, Chemistry, Structure, &Biology, Proc. 13th American Peptide Symposium′, R. S. Hodges & J. A. Smith (Eds), ESCOM, Leiden, 1994, pp. 151.

Linkage

Replaces: 01-64-0107

Analysis Note

Color (visual): white to yellow to beige
Appearance of substance (visual): beads
Loading (determined from the substitution of the Fmoc-Leu loaded resin): 1.00 - 2.00 mmol/g
Swelling Volume (in DMF): lot specific result
The polymer matrix is copoly (styrene-1% DVB), 200 - 400 mesh.

Legal Information

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

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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