13BETA-O-METHOXYMETHYL-22,23-DIHYDRO AVERMECTIN B1A-B1B AGLYCONE AS A SUPERIOR ANTIPARASITIC AGENT

摘要

116/DLR60 18537 TITLE OF THE INVENTION 13.beta.-O-METHOXYMETHYL-22,23-DIHYDRO AVERMECTIN BlA/BlB AGLYCONE AS A SUPERIOR ANTIPARASITIC AGENTS The novel compound l3.beta.-o-methoxymethyl-22,23 dihydro avermectin Bla/Blb aglycone is useful as an anthelmintic and antiparasitic agent and has been discovered to be unexpectedly superior to the corresponding 13.alpha.-compound. The compound is also useful as a pesticide and insecticide against agricultural pests. Compositions containing said compound and methods of administering said compositions are also disclosed.