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19
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53949107672
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G. Bringmann J. Mutanyatta-Comar K. Maksimenka J. M. Wanjohi M. Heydenreich R. Brun W. E. G. Müller M. G. Peter J. O. Midiwo A. Yenesew Chem.-Eur. J. 2008 14 1420 1429
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A. A. Wube F. Bucar K. Asres S. Gibbons M. Adams B. Streit A. Bodensieck R. Bauer Phytomedicine 2006 13 452 456
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25
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0037047559
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G. Bringmann D. Menche J. Kraus J. Mühlbacher K. Peters E.-M. Peters R. Brun M. Bezabih B. M. Abegaz J. Org. Chem. 2002 67 5595 5610
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28
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0003599842
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Springer, Berlin
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R. M. T. Dahlgren, H. T. Clifford and P. F. Yeo, in The Families of the Monocotyledons, Structure, Evolution and Taxonomy, Springer, Berlin, 1985
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Dahlgren, R.M.T.1
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0009625270
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The Botswana Society and the National Museum, Monuments and Art, Gaborone, pp. 46-47
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J. E. Barnes, L. M. Turton and E. Kalake, in A List of Flowering Plants of Botswana, The Botswana Society and the National Museum, Monuments and Art, Gaborone, 1994, pp. 46-47
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0035753429
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W. Herz, H. Falk, G. W. Kirby, R. E. Moore and C. Tamm, Springer-Verlag, Wien, New York, pp. 1-249
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G. Bringmann, G. Günther, M. Ochse, O. Schupp and S. Tasler, in Progress in the Chemistry of Organic Natural Products, ed., W. Herz,,, H. Falk,,, G. W. Kirby,,, R. E. Moore, and, C. Tamm,, Springer-Verlag, Wien, New York, 2001, vol. 82, pp. 1-249
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24644462889
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G. Bringmann A. J. Price Mortimer P. A. Keller J. Gresser J. Garner M. Breuning Angew. Chem., Int. Ed. 2005 44 5384 5427
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Bringmann, G.1
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42
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0029995062
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G. François G. Timperman J. Holenz L. Aké Assi T. Geuder L. Maes J. Dubois M. Hanocq G. Bringmann Ann. Trop. Med. Parasitol. 1996 90 115 123
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François, G.1
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43
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0028246682
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M. R. Boyd Y. F. Hallock J. H. Cardellina II K. P. Manfredi J. W. Blunt J. B. McMahon R. W. Buckheit Jr G. Bringmann M. Schäffer G. M. Cragg D. W. Thomas J. G. Jato J. Med. Chem. 1994 37 1740 1745
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47
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0000890024
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-
Due to the revision of the absolute configurations of 1 and 19, 4 the absolute configuration of all other axially chiral PAQs is opposite to those initially assigned (see also last chart of the revision paper 4)
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G. Bringmann M. Rübenacker P. Vogt H. Busse L. Aké Assi K. Peters H. G. von Schnering Phytochemistry 1991 30 1691 1696
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50
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0035827458
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-
No CD spectrum of isoknipholone anthrone has ever been reported. More recently, however, a sample of isoknipholone (P: M = 85: 15) available by isolation from B. frutescens 19 was reduced to isoknipholone anthrone in the authors' lab. Its resolution on a chiral phase with chiroptical analysis online, by HPLC-CD, revealed that it was also P-configured. 19 Note that some compounds, 27 and 28, though stereochemically analogous, e.g., to the P-configured metabolite 32, 39,54 possess the M-configuration due to the Cahn-Ingold-Prelog formalism, but have erroneously been denoted in the literature. 18 Still, in combination with the configurational revision, 4 the descriptors of 27 and 28 remain the same, i.e., M
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G. Flamini E. Antognoli I. Morelli Phytochemistry 2001 57 559 564
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G. Helmchen, R. Hoffmann, J. Mulzer and E. Schaumann, Thieme, Stuttgart, 4th edn, pp. 11-13
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Thomson, R.H.1
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58
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0001477577
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No loss of atropisomeric purity of (P)-knipholone was observed when heating the compound to 185°C in DMSO: G. Bringmann, J. Mutanyatta-Comar, unpublished work
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D. Barron R. K. Ibrahim Tetrahedron 1987 43 5197 5202
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Two exceptions are compounds 27 and 28, which, due to the sugar portion at C-6, have to be denoted as M. 55
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G. Bringmann Y. Reichert V. V. Kane Tetrahedron 2004 60 3539 3574
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G. Bringmann T. F. Noll T. A. M. Gulder M. Grüne M. Dreyer C. Wilde F. Pankewitz M. Hilker G. D. Payne A. L. Jones M. Goodfellow H.-P. Fiedler Nat. Chem. Biol. 2006 2 429 433
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87
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0001392146
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For a structural biosynthetic classification of F and S polyketide folding modes, see:
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E. Leistner Phytochemistry 1971 10 3015 3020
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Leistner, E.1
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