55700-01-1Relevant academic research and scientific papers
Unusual O-alkylation of 2-hydroxy-1,4-naphthoquinone utilizing alkoxymethyl chlorides
Ogata, Tokutaro,Yoshida, Tomoyo,Tanaka, Manami,Fukuhara, Chie,Shimizu, Maki,Ishii, Junko,Nishiuchi, Arisa,Inamoto, Kiyofumi,Kimachi, Tetsutaro
, p. 485 - 488 (2015)
A new type of O-alkylation of 2-hydroxy-1,4-naphthoquinone with alkoxymethyl chlorides is described. The reaction course can be controlled by the choice of base and yields Oalkylated or O-alkoxymethylated products in high yield with high selectivity.
Synthesis of 2-alkoxy 1,4-naphthoquinone derivatives as antiplatelet, antiinflammatory, and antiallergic agents
Lien, Jin-Cherng,Huang, Li-Jiau,Teng, Che-Ming,Wang, Jih-Pyang,Kuo, Sheng-Chu
, p. 672 - 674 (2002)
In our continuing search for novel antiplatelet, antiallergic, and antiinflammatory agents, 2-alkoxy derivatives of 1,4-naphthoquinone were prepared. Some of these compounds showed significant antiplatelet, antiallergic, and antiinflammatory activities. A
COMPOUNDS FOR THE TREATMENT OF NEUROLOGICAL OR MITOCHONDRIAL DISEASES
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Paragraph 00163; 00188-00189; 00192, (2020/02/23)
Compounds and methods are provided for the treatment of neurological or mitochondrial diseases, including epilepsy. In some embodiments, the compounds are substituted 1,4- naphthoquinones.
Synthesis of pharmacologically important naphthoquinones and anticancer activity of 2-benzyllawsone through DNA topoisomerase-II inhibition
Kumar, Balagani Sathish,Ravi, Kusumoori,Verma, Amit Kumar,Fatima, Kaneez,Hasanain, Mohammad,Singh, Arjun,Sarkar, Jayanta,Luqman, Suaib,Chanda, Debabrata,Negi, Arvind S.
, p. 1364 - 1373 (2017/02/18)
Naphthoquinones are naturally occurring biologically active entities. Practical de novo syntheses of three naphthoquinones i.e. lawsone (1), lapachol (2), and β-lapachone (3b) have been achieved from commercially available starting materials. The conversion of lapachol (2) to β-lapachone (3b) was achieved through p-TSA/Iodine/BF3-etherate mediated regioselective cyclisation. Further, 2-alkyl and 2-benzyllawsone derivatives have been prepared as possible anticancer agents. Four derivatives exhibited significant anticancer activity and the best analogue i.e. compound 21a exhibited potential anticancer activity (IC50?=?5.2?μM) against FaDu cell line. Compound 21a induced apoptosis through activation of caspase pathway and exerted cell cycle arrest at S phase in FaDU cells. It also exhibited significant topoisomerase-II inhibition activity. Compound 21a was found to be safe in Swiss albino mice up to 1000?mg/kg oral dose.
Unusual, chemoselective etherification of 2-hydroxy-1,4-naphthoquinone derivatives utilizing alkoxymethyl chlorides: Scope, mechanism and application to the synthesis of biologically active natural product (±)-lantalucratin C
Ogata, Tokutaro,Yoshida, Tomoyo,Shimizu, Maki,Tanaka, Manami,Fukuhara, Chie,Ishii, Junko,Nishiuchi, Arisa,Inamoto, Kiyofumi,Kimachi, Tetsutaro
, p. 1423 - 1432 (2017/02/15)
A novel etherification of 2-hydroxy-1,4-naphthoquinone derivatives with alkoxyalkyl chlorides and hydride bases is described. Precise study of the conditions and substrate scope suggested that the reaction occurs specifically in the molecule having a 2-hydroxy-1,4-benzoquinone skeleton. A chemoselective O-methylation reaction was achieved to afford a synthetically important intermediate, which offered easy access to a natural product possessing anti-tumor activity.
