ISARIIN, A NEW DEPSIPEPTIDE FROM ISARIA CRETACEA | Zendy

L. C. Vining | Zendy; Willard A. Taber | Zendy

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ISARIIN, A NEW DEPSIPEPTIDE FROM ISARIA CRETACEA

Author(s) -

L. C. Vining,

Willard A. Taber

Publication year - 1962

Publication title -

canadian journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.323

H-Index - 68

eISSN - 1480-3291

pISSN - 0008-4042

DOI - 10.1139/v62-239

Subject(s) - chemistry , valine , amino acid , alanine , glycine , hydrolysis , stereochemistry , yield (engineering) , leucine , organic chemistry , biochemistry , materials science , metallurgy

One of the metabolic products of the fungus Isaria cretacea has been found to yield four different amino acids and a hydroxyacid on acid hydrolysis. The amino acids were identified as glycine, L-alanine, L-valine, and D-leucine, and a quantitative analysis showed them to be present in the molar ratio of 1:1:2:1, respectively. The hydroxyacid was identified as D-β-hydroxydodecanoic acid. These units appear to be combined in a simple cyclic structure by means of peptide bonds and an ester linkage between the hydroxyl of hydroxydecanoic acid and the carboxyl of the C-terminal amino acid. The sequence valine → β-hydroxydodecanoic acid → glycine has been established.

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