The molecule is an avermectin analogue that is avermectin A1a in which the methoxy group attached to the tetrahydrobenzofuranyl moiety is replaced by a hydroxy group and in which the hydroxy group at position 4 of the terminal 2,6-dideoxy-3-O-methyl-alpha-L-arabino-hyxopoyranosyl group is replaced by an acetamido group. It is an avermectin analogue, a semisynthetic derivative, a member of acetamides, an organic heteropentacyclic compound, a spiroketal and a disaccharide derivative.
N-[(2S,3S,4S,6S)-6-[(2S,3S,4S,6R)-6-[(1'R,2R,3S,4'S,6S,8'R,10'E,12'S,13'S,14'E,16'E,20'R,21'R,24'S)-2-[(2S)-butan-2-yl]-21',24'-dihydroxy-3,11',13',22'-tetramethyl-2'-oxospiro[2,3-dihydropyran-6,6'-3,7,19-trioxatetracyclo[15.6.1.14,8.020,24]pentacosa-10,14,16,22-tetraene]-12'-yl]oxy-4-methoxy-2-methyloxan-3-yl]oxy-4-methoxy-2-methyloxan-3-yl]acetamide