3300-25-2Relevant articles and documents
Synthesis of highly functionalized anthraquinones and evaluation of their antitumor activity
Tietze, Lutz F.,Gericke, Kersten M.,Schuberth, Ingrid
, p. 4563 - 4577 (2007)
Highly functionalized anthraquinones which derive from the natural products mensacarcin, islandicin, and chrysophanol have been efficiently synthesized using a Diels-Alder reaction as key step. The introduction of the proposed pharmacophoric side chain unit has been achieved by an addition of an aryllithium species onto different aldehydes. Furthermore, the antitumor activity of these novel compounds has been studied by the in vitro growth inhibition of human lung carcinoma cells of line A549. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
4H-Anthra[1,2-b]pyran antibiotics. Total synthesis of the methyl ether of kidamycinone
Hauser,Rhee
, p. 1628 - 1629 (1979)
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A new synthesis of Rhein
Gallagher, Peter T.,Hicks, Terry A.,Lightfoot, Andrew P.,Martin Owton
, p. 289 - 292 (1994)
A novel synthesis of Rhein (2), the active metabolite of the anti-osteoarthritic drug Diacetyl Rhein (1) has been achieved. Key steps include stereospecific olefination of aldehyde 21 with novel phosphonate 28 and the cylisation of acid 31 to produce anthracene 32.
Intramolecular aldol-type condensation between side chains of naphthoquinones: Biomimetic synthesis of 1,6- and 1,8-dihydroxyanthraquinones
Uno, Hidemitsu,Masumoto, Akane,Honda, Erina,Nagamachi, Yumi,Yamaoka, Youtarou,Ono, Noboru
, p. 3189 - 3197 (2007/10/03)
Intramolecular condensation of 2-(acetonyl)-3-acyljuglone derivatives under basic conditions gave 1,6- and/or 1,8-dihydroxyanthraquinones depending on the conditions employed. Treatment of 6-[(3-acetyl-5-methoxy-1,4-dioxo-1,4-dihydro-2-naphthyl)methyl]-2,2- dimethyl-4H-1,3-dioxin-4-one with K2CO3 in alcohol brought about the intramolecular Knoevenagel-type reaction to give 3-hydroxy-8-methoxy-1-methyl-9,10-dioxo-9,10-dihydro-anthracene-2- carboxylates in good yields, while the same naphthoquinone gave 4-hydroxy-5-methoxy-9,10-dioxo-9,10-dihydroanthracene-2-acetic acid in good yield by treatment with potassium bis(trimethylsilyl)amide (KHMDS). Chrysophanol, aloe-emodin, aloesaponarin I, and K1115A were prepared in good yields.