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1-N-acylation of aminocyclitol antibiotics via zinc chelation and regiospecific N-trifluoroacetylation

✍ Scribed by Tsutomo Tsuchiya; Yasushi Takagi; Sumio Umezawa


Publisher
Elsevier Science
Year
1979
Tongue
French
Weight
236 KB
Volume
20
Category
Article
ISSN
0040-4039

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✦ Synopsis


Sumnary: Amikacin and l-N-[(S)-4-amino-2-hydroxybutyryl]-3',4'-dideoxykanamycin B have been prepared from kanamycin A and dibekacin by a novel, efficient sequence of reactions involving complex formation with Zn2+ and regiospecific N-trifluoroacetylation using ethyl trifluoroacetate.


πŸ“œ SIMILAR VOLUMES


1-acetoxyvinyl phosphonates: Facile synt
✍ Nikolay I. Tyryshkin; Alexandra V. Fuzshenokova; Andrey N. Vedernikov; Boris N. πŸ“‚ Article πŸ“… 1992 πŸ› John Wiley and Sons 🌐 English βš– 373 KB

## Abstract A new and facile method of synthesis of 1‐acetoxyvinyl phosphonates (__2__) has been found. Dialkyl phosphites react readily with acetic anhydride in acetonitrile solution in the presence of catalysts to produce __2__ and acylphosphonates (__1__) as a minor product. The most efficient c