𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Protection during peptide synthesis: Some new directions

✍ Scribed by Geoffrey T. Young


Publisher
Wiley (John Wiley & Sons)
Year
1981
Tongue
English
Weight
251 KB
Volume
20
Category
Article
ISSN
0006-3525

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Methods available for the protection of the functional groups of amino acids during peptide synthesis are discussed, and attention is drawn to the advantages of side‐chain protection of the 4‐pyridylmethyl type, having increased acid stability and cleaved by mild reductive procedures in the presence of sulfur. The use of S‐diphenyl‐4‐pyridylmethyl‐cysteine and N^im^‐diphenyl‐4‐pyridylmethyl‐histidine is described.


📜 SIMILAR VOLUMES


(p-Phenylazophenyl)-Isopropyloxycarbonyl
✍ Aung Tun-Kyi; Robert Schwyzer 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 German ⚖ 267 KB

## Abstract The preparation and properties of thirty two N(α)‐[2‐(__p__‐phenylazophenyl)‐isopropylcarbonyl]‐amino‐acids and derivatives are described. The new coloured protecting group (AZOC‐) can be easily and selectively removed with mild acid treatment, much the same as the 2‐(biphenyl)‐isopropy

A New Reagent for the Cleavage of NPS-Am
✍ Marcel Juillerat; J. Pierre Bargetzi 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 German ⚖ 840 KB

## Abstract The value of several reagents capable of removing quantitatively the α‐amino protecting group of NPS‐aminoacyl‐ or peptidyl‐derivatives is assessed, by comparison with the reagents currently used, __i.e.__ hydrogen chloride, RS^–^‐nucleophiles or alkyl thioamides, especially with regard

Oxidative Deblocking of the 4-Methoxyben
✍ Platen, Martin ;Steckhan, Eberhard 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 829 KB

## Abstract The 4‐methoxybenzyl thioether protecting group is deblocked efficiently by oxidation with the homogeneous electron transfer agent tris(4‐bromophenyl)ammoniumyl (**2**^.⊕^) leading to the disulfide in high yields. __S__‐(4‐methoxybenzyl)cysteine derivatives like **9** in this way can be

A New Method for the Detection of Racemi
✍ Hans Rudolf Bonsshard; Israel Schechter; Arieh Berger 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 German ⚖ 525 KB

## Abstract A suitably protected dipeptide of configuration L‐D, __e.g.__ Z‐L‐Ala‐D‐Ala is coupled with an all L alanine peptide, __e.g.__ L‐Ala‐L‐Ala‐ONbAbbreviations according to the IUPAC‐IUB rules, ‘Symbols for Amino‐Acid Derivatives and Peptides, Recommendations (1971)’'. see __e.g.__ J. biol.