The IUPAC nomenclature uses "'dihydronaphthalenedione "'instead of " naphthoquinone ", with the necessary prefixes to indicate the positions of the carbonyl oxygens ( = O ) as in 5, 8-dihydroxy-1a, 8a-dihydronaphthalene-1, 4-dione ( = 5, 8-dihydroxy-1, 4-naphthoquinone ).
32.
The IUPAC nomenclature uses "'dihydronaphthalenedione "'instead of " naphthoquinone ", with the necessary prefixes to indicate the positions of the carbonyl oxygens ( = O ) as in 5, 8-dihydroxy-1a, 8a-dihydronaphthalene-1, 4-dione ( = 5, 8-dihydroxy-1, 4-naphthoquinone ).
33.
Six known naphthoquinone derivatives have been isolated from " O . unilateralis ", namely erythrostominone, deoxyerythrostominone, 4-" O "-methyl erythrostominone, epierythrostominol, deoxyerythrostominol, and 3, 5, 8-trihydroxy-6-methoxy-2-( 5-oxohexa-1, 3-dienyl )-1, 4-naphthoquinone, which have shown activity in " in vitro " assays related to anti-malarial drug discovery.
34.
Six known naphthoquinone derivatives have been isolated from " O . unilateralis ", namely erythrostominone, deoxyerythrostominone, 4-" O "-methyl erythrostominone, epierythrostominol, deoxyerythrostominol, and 3, 5, 8-trihydroxy-6-methoxy-2-( 5-oxohexa-1, 3-dienyl )-1, 4-naphthoquinone, which have shown activity in " in vitro " assays related to anti-malarial drug discovery.
