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Stepwise synthesis of oligopeptides with N-carboxy-.alpha.-amino acid anhydrides. IV. N-Carboxyglycine anhydride

✍ Scribed by Katakai, Ryoichi.; Oya, Masanao.; Uno, Keikichi.; Iwakura, Yoshio.

Book ID
127206517
Publisher
American Chemical Society
Year
1972
Tongue
English
Weight
459 KB
Volume
37
Category
Article
ISSN
0022-3263

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πŸ“œ SIMILAR VOLUMES

Stepwise synthesis of oligopeptides with
Stepwise synthesis of oligopeptides with N-carboxy Ξ±-amino acid anhydrides
✍ Oshio Iwakura; Keikichi Uno; Masanao Oya; Ryoichi Katakai πŸ“‚ Article πŸ“… 1970 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 365 KB πŸ‘ 1 views

## Abstract Oligopeptides were synthesized in high yields by the controlled coupling reaction of __N__‐carboxy α‐amino acid anhydrides (NCA's) with amino acid and peptide sodium salts in the heterogeneous reaction medium of acetonitrile–water which contained sodium carbonate. In this solvent, it co

Stepwise synthesis of oligopeptides with
Stepwise synthesis of oligopeptides with N-carboxy Ξ±-amino acid anhydrides. II. Oligopeptides with some polar side chains
✍ Ryoichi Katakai; Masanao Oya; Keikichi Uno; Yoshio Iwakura πŸ“‚ Article πŸ“… 1971 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 446 KB πŸ‘ 1 views

The reaction of NCA's with some amino acids having a nucleophilic functional group on the side chain was studied in a heterogeneous reaction medium (acetonitrile-water). Glutamic acid and aspartic acid, having a free carboxyl group on the side chain, were successfully used to synthesize oligopeptide