Methanolic extracts of hard and soft varieties of the sponge Verongia archeri were found to contain similar compounds. An isolation procedure and the structures of 2-(3',5'-dibromo-4'-hydroxyphenyl)-acetamide, 1-(3',5'-dibromo-1',6'-dihydroxy-4'-methoxycyclohexa-2',4'-diene)acetonitrile, and 2-oxo-5
The Synthesis of Physiologically Active Peptides
β Scribed by Dr. Rolf Geiger
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 898 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0044-8249
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β¦ Synopsis
Abstract
In addition to the classical protective groups and linkage.methods for the synthesis of peptides, there are now a number of new techniques that allow the synthesis of fairly long peptide chains without racemization. In the present progress report, the diagnostic and therapeutic importance of the analogs obtainable by chemical synthesis is illustrated by some examples, particularly from the field of the peptide hormones secreted by the neurohypophysis, oxytocin and vasopressin, as well as corticotropins and releasing hormones. With the advance of synthesis technique, it will become possible to include fairly complicated molecules, such as insulin and even enzymes in such considerations.
π SIMILAR VOLUMES
## Abstract 1. The extent of racemization and the coupling yield in peptide synthesis were studied under high dilution conditions. The azide method yielded the best results. 2. Five linear pentaβpeptide precursors related to gramicidin S were subjected to cyclization in order to study how the diffe