Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
POLYMERIC NITROPHENYLSULFENYL CHLORIDE, AN INSOLUBLE AMINO PROTECTING REAGENT IN PEPTIDE SYNTHESIS
Hisashi ItoKeiichi OgawaIwao Ichikizaki
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1978 Volume 7 Issue 1 Pages 7-8

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Abstract

A polymeric nitrophenylsulfenyl chloride(5) was synthesized and used for amino protection during peptide synthesis. The insoluble protecting group can be selectively removed from the amino derivative with mild acid treatment similarly to o-nitrophenylsulfenyl(Nps) group, and the separation is quite easy due to its insolubility. When the protected derivative is treated with hydrogen chloride for deprotection, the polymeric reagent(5) is regenerated so that it can be used for amino protection repeatedly.

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