ON THE N-METHYL-L-THREONINE RESIDUE IN STENDOMYCIN
نویسندگان
چکیده
منابع مشابه
On the N-methyl-L-threonine residue in stendomycin.
Sir: In a previous communication^ to this Jour nal, the isolation of N-methyl-L-threonine from acid hydrolysates of stendomycin2~4) was briefly mentioned. We wish to report here some experiments that led to the final assignment of the configuration for this amino acid with two centers of asymmetry. The specific rotation of the N-methyl amino acid from stendomycin was in good agreement with the ...
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The tripeptide title compound, C(32)H(53)N(3)O(6), synthesized in 80% yield by coupling of N-methyl-l-leucine benzyl ester with tert-butoxy-carbonyl-l-leucyl-N-methyl-l-leucine at 273 K, conjugates through two amide linkages and includes two protecting groups: a tert-butyl-oxycarbonyl group at the C-tip and a benzyl group at the N-tip. A classical inter-molecular N-H⋯O hydrogen bond and a weak ...
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N-Cinnamoyl-l-phenylalanine methyl ester
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 1968
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.21.668