Antiparasitic agents

Details Antiparasitic agents Antiparasitic agents

1989-04-11

1990-05-22

Hollrah, Glennon H.

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

Organic compounds

Carbohydrates or derivatives

549268, C07H 1708

Patent

active

049279181

ABSTRACT:
Antiparasitics comprising Avermectin derivatives of formula (I): ##STR1## wherein X represents a single or a double bond; R.sup.1 is H or OH; provided that when X is a single bond, R.sup.1 is H or OH, and when X is a double bond, R.sup.1 is absent;
R.sup.2 is an alkyl group substituted by one oxo or one or more hydroxy groups or by a single oxygen atom on two adjacent carbon atoms to form an oxirane ring, or R.sup.2 is an alkyl group substituted by an alkoxycarbonyl group, said substituents on R.sub.2 being attached to either or both a terminal carbon atom and a carbon atom adjacent to a terminal carbon atom of R.sup.2 ; and R.sup.3 is H or CH.sub.3 ; or, when R.sup.2 is oxo-substituted alkyl, an alkyl acetal or ketal derivative thereof.

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