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1991•Chemical and Pharmaceutical BulletinOpen access

Structure Elucidation of Glycosidic Antibiotics, Glykenins, from Basidiomycetes sp. IV. Structure of Glykenin III.

Fumiko Nishida, Yuji Mori, Makoto Suzuki, Vithaya Meevootisom, Timothy W. Flegel, Yodhathai Thebtaranonth, Suthum INTARARUANGSORN

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Abstract

Three new glycosidic antibiotics, glykenin (GK)-III A, B, and C (2a-c), were isolated as a mixture from a strain of Basidiomycetes sp. and identified as glycosides of C26-fatty acids and a diacetylated trisaccharide composed of glucose and two xyloses. The locations of the two acetyl groups were elucidated by secondary ion mass spectrometry (SIMS), double quantum filter (DQF), and relayed chemical shift correlation spectroscopy (COSY) spectral analysis.

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Three new glycosidic antibiotics, glykenin (GK)-III A, B, and C (2a-c), were isolated as a mixture from a strain of Basidiomycetes sp. and identified as glycosides of C26-fatty acids and a diacetylated trisaccharide composed of glucose and two xyloses. The locations of the two acetyl groups were elucidated by secondary ion mass spectrometry (SIMS), double quantum filter (DQF), and relayed chemical shift correlation spectroscopy (COSY) spectral analysis.

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Available abstract

Three new glycosidic antibiotics, glykenin (GK)-III A, B, and C (2a-c), were isolated as a mixture from a strain of Basidiomycetes sp. and identified as glycosides of C26-fatty acids and a diacetylated trisaccharide composed of glucose and two xyloses. The locations of the two acetyl groups were elucidated by secondary ion mass spectrometry (SIMS), double quantum filter (DQF), and relayed chemical shift correlation spectroscopy (COSY) spectral analysis.

Key concepts: Chemistry, Glycosidic bond, Trisaccharide, Stereochemistry, Glycoside, Mass spectrometry, Nuclear magnetic resonance spectroscopy, Two-dimensional nuclear magnetic resonance spectroscopy

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Structure Elucidation of Glycosidic Antibiotics, Glykenins, from Basidiomycetes sp. IV. Structure of Glykenin III. — Research Paper | ScholarLens