Biotransformation of meso-dimethyl dihydroguaiaretic acid and diarylbu
tadiene in Spodoptera litura larvae has been investigated. These acycl
ic lignans were demethylated at the para-position of the veratryl grou
p and transformed to meso-monomethyl dihydroguaiaretic acid and O-deme
thyldiarylbutadiene by larvae, respectively. (C) 1997 Elsevier Science
Ltd.