Process for preparing milbemycin derivatives and certain novel c

Details Process for preparing milbemycin derivatives and certain novel c Process for preparing milbemycin derivatives and certain novel c

1991-01-24

1993-05-04

Fan, Jane T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31300

Patent

active

052083497

ABSTRACT:
13-Hydroxy-5-ketomilbemycin derivatives are prepared by oxidizing a 5-ketomilbemycin with selenium dioxide in the presence of a lower aliphatic carboxylic acid. A range of new 13-acyloxy-5-ketomilbemycins and a method of preparing them are also disclosed.

REFERENCES:
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patent: 4142056 (1979-02-01), Sih
patent: 4169940 (1979-10-01), Dolak
patent: 4346171 (1982-08-01), Takiguchi et al.
patent: 4423209 (1983-12-01), Mrozik
Wagner & Zook Synthetic Organic Chem. John Wiley & Sons, Inc. 1953.
Bulletin of the Chemical Society of Japan, vol. 42, 2056-2058 (1969) K. Javaid et al. "Selenium Dioxide Oxidation of Styrene and Norbornene".
J. Org. Chem., vol. 33, No. 4, Jul. 1968, J. Schaefer et al. "Selenium Dioxide Oxidations III, The Oxidation of Olefins." pp. 2647-2655.

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