Quinones of streptocarpus dunnii

Bioactive Naphthoquinones from Higher Plants

“…Sinningia (60) aggregata T Aggregatin D [190] Streptocarpus (18) dunnii AP Dunnione, a-dunnione, 7-hydroxy-a-dunnione, 7-methoxy-adunnione, 6-hydroxy-7-methoxy-a-dunnione [191,192] Scrophulariaceae (87) Capraria (7) biflora L 6,9-Dimethyl-3-(4-methyl-3-pentenyl)naphtho[1,8-bc]pyran-7,8-dione (biflorin) [193][194][195] Lamiaceae (250) Tectona (3) grandis HW Lapachol, deoxylapachol, tectoquinone, tecomaquinone-1,5hydroxylapachol [196][197][198][199] Salvia (959) columbariae R Miltionone II, cryptotanshinone, tanshinone IIA [22] miltiorrhiza R Tanshinones [200,201] Paulowniaceae [202,203] Pedaliaceae (11) [204,205] Bignoniaceae (85) Catalpa (11) ovata S Catalpol, catalpalactone, a-lapachone, dehydro-a-lapachone, 9-hydroxy-a-lapachone, 4,9-dihydroxy-a-lapachone, 9-methoxy-a-lapachone, 4-oxo-a-lapachone, 9-methoxy-4-oxo-a-lapachone [206][207][208] Cybistax (1) antisyphilitica SW Lapachol [209] Dolichandra ( …”

Biotechnology and biosynthesis of quinones

“…From suspension cultures of Streptocarpus dunnii several naphthoquinones, prenylated at C-3 [e.g. dunnione (13)] were isolated [24]. These unusually prenylated metabolites arise via osuccinylbenzoic acid, DHNA, lawsone (14) and O-prenylated lawsone (lawsone 2-prenyl ether) (15).…”

Synthesis of novel nitrogen containing naphtho[2,1-b]furan derivatives and investigation of their anti microbial activities

“…[1][2][3] These plant extracts are being used for traditional medicines, [4][5][6][7][8][9][10][11] and some of them for example mansonone D, 12 Dunnione, 13 etc are also vital biologically active agents.…”