82-39-3Relevant articles and documents
Electrochemical Switching of Lariat Ethers: Enhanced Cation Binding by One- and Two-electron Reduction of an Anthraquinone Sidearm
Echegoyen, Luis,Gustowski, Deborah A.,Gatto, Vincent J.,Gokel, George W.
, p. 220 - 223 (1986)
The first example of cation binding enhancement by electrochemical switching in a lariat ether, accomplished by one- or two-electron reduction of a quinone sidearm, is presented.
Characterization of TnmH as an O-Methyltransferase Revealing Insights into Tiancimycin Biosynthesis and Enabling a Biocatalytic Strategy to Prepare Antibody-Tiancimycin Conjugates
Adhikari, Ajeeth,Teijaro, Christiana N.,Yan, Xiaohui,Chang, Chin-Yuan,Gui, Chun,Liu, Yu-Chen,Crnovcic, Ivana,Yang, Dong,Annaval, Thibault,Rader, Christoph,Shen, Ben
supporting information, p. 8432 - 8441 (2020/09/23)
The enediynes are among the most cytotoxic molecules known, and their use as anticancer drugs has been successfully demonstrated by targeted delivery. Clinical advancement of the anthraquinone-fused enediynes has been hindered by their low titers and lack of functional groups to enable the preparation of antibody-drug conjugates (ADCs). Here we report biochemical and structural characterization of TnmH from the tiancimycin (TNM) biosynthetic pathway, revealing that (i) TnmH catalyzes regiospecific methylation at the C-7 hydroxyl group, (ii) TnmH exhibits broad substrate promiscuity toward hydroxyanthraquinones and S-alkylated SAM analogues and catalyzes efficient installation of reactive alkyl handles, (iii) the X-ray crystal structure of TnmH provides the molecular basis to account for its broad substrate promiscuity, and (iv) TnmH as a biocatalyst enables the development of novel conjugation strategies to prepare antibody-TNM conjugates. These findings should greatly facilitate the construction and evaluation of antibody-TNM conjugates as next-generation ADCs for targeted chemotherapy.
Synthesis method of anthraquinone derivatives and tetracenedione derivatives through benzannulation reaction
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Paragraph 0029-0030; 0044, (2017/08/09)
The present invention relates to a method for synthesizing anthraquinone derivatives and tetracene dione derivatives through a benzannulation reaction, which presents a novel synthesis method, capable of processing synthesis easily, conveniently, and efficiently under mild conditions by an organic catalyst. The synthesis method uses an L-proline catalyst which is nontoxic, economical and easily available, compared to conventional production methods, thereby providing the anthraquinone derivatives and the tetracene dione derivatives through the one-pot benzannulation reaction of an α, β-unsaturated aldehyde compound, various 1,4-naphthoquinone compounds or 1,4-anthracenedione compounds. Various forms of anthraquinone derivatives or tetracene dione derivatives prepared by the synthesis method can be widely used for synthesis of natural products, dyes, and pharmaceutical products.COPYRIGHT KIPO 2017
Synthesis of functionalized 1,4-dihydro-9,10-anthraquinones and anthraquinones by ring closing metathesis using Grubbs' catalyst
Van Nguyen, Tuyen,D'Hooghe, Matthias,Pattyn, Siegfried,De Kimpe, Norbert
, p. 1913 - 1916 (2007/10/03)
A general and straightforward synthesis of anthraquinones was developed, in which diallylation of 1,4-naphthoquinones, followed by Ring Closing Metathesis (RCM) of the resulting diallylnaphthoquinones with Grubbs' catalyst and subsequent dehydrogenation using Pd/C afforded the desired anthraquinones with regiocontrol of substituents and in good yields.