13 BETA-O-METHOXYMETHYL-22-23-DIHYDRO AVERMECTIN B1 A/B1B AGLYCONE AS A SUPERIOR ANTIPARASITIC AGENTS

摘要

The novel compound 13 beta -O-methoxymethyl-22,23-dihydro avermectin B1a/B1b 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.