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Mass spectrometry of destruxins A and B, insecticidal cyclodepsipeptides produced by Metarrhizium anisopliae
Author(s) -
Suzuki Akinori,
Takahashi Nobutaka,
Tamura Saburo
Publication year - 1970
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210040119
Subject(s) - mass spectrum , moiety , mass spectrometry , chemistry , ion , stereochemistry , chromatography , organic chemistry
The mass spectra of the destruxins, insecticidal cyclodepsipeptides, were examined. The major ion peaks at [M – 57], [M – 85], [M – 142] and [M – 170] observed in the spectra were proved to be characteristic of the presence of the N‐methylvalyl‐N‐methylalanyl moiety in the ring structure. The amino acid sequence in the destruxins was confirmed through the analyses of the mass spectra of their open‐chain derivatives.