Process for isolation of avermectin B1 components with improved

Details Process for isolation of avermectin B1 components with improved Process for isolation of avermectin B1 components with improved

1986-11-18

1991-12-31

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

536 169, 536127, C07M 100

Patent

active

050773984

ABSTRACT:
This invention relates to a novel process for isolation and purification of avermectin compounds which are produced by the microorganism, Streptomyces avermitilis. The process disclosed herein involves two steps, namely, crude crystallization and recrystallization. The isolated compounds are described generically as avermectin B1 and B2 and have significant parasiticidal activity.

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