Fig. 2From: Isolation and identification of antimicrobial secondary metabolites from Bacillus cereus associated with a rhabditid entomopathogenic nematodeStructure of diketopiperazines. a cyclo(D-Pro-D-Leu) (1), b cyclo(L-Pro-D-Met) (2), c cyclo (L-Pro-D-Phe) (3), d cyclo (L-Pro-L-Val) (4), e 3,5-dihydroxy-4-ethyl-trans-stilbene (5), and f 3,5-dihydroxy-4-isopropylstilbene (6)Back to article page