Processes for the interconversion of avermectin compounds

Details Processes for the interconversion of avermectin compounds Processes for the interconversion of avermectin compounds

1982-02-26

1983-12-27

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

549264, C07H 1708, C07D31300

Patent

active

044232098

ABSTRACT:
There is disclosed a process for converting avermectin compounds (formerly identified as C-076 compounds) of the A-type, into avermectin compounds of the B-type. The process is carried out on the naturally occuring avermectin compounds as well as on derivatives thereof. The process involves selectively cleaving the 5-methoxy group, converting it into the hydroxy group, through the intermediate 5-keto group.

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patent: 4173571 (1979-11-01), Chabala et al.
patent: 4199569 (1980-04-01), Chabala et al.
patent: 4206205 (1980-06-01), Mrozik et al.
patent: 4289760 (1981-09-01), Mrozik et al.
patent: 4310519 (1982-01-01), Albers-Schonberg et al.
Chabala et al., (IV), Journal of Agricultural & Food Chemistry, 29, 881, (1981).

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