1446-24-8Relevant articles and documents
Structure–activity relationships and docking studies of hydroxychavicol and its analogs as xanthine oxidase inhibitors
Nishiwaki, Keiji,Ohigashi, Kanae,Deguchi, Takahiro,Murata, Kazuya,Nakamura, Shinya,Matsuda, Hideaki,Nakanishi, Isao
, p. 741 - 747 (2018/07/05)
Hydroxychavicol (HC), which is obtained from the leaves of Piper betle LINN. (Piperaceae), inhibits xanthine oxidase (XO) with an IC50 value of 16.7μM, making it more potent than the clinically used allopurinol (IC50=30.7μM). Herein, a structure–activity relationship analysis of the polar part analogs of HC was conducted and an inhibitor was discovered with a potency 13 times that of HC. Kinetic studies have revealed that HC and its active analog inhibit XO in an uncompetitive manner. The binding structure prediction of these inhibitor molecules to the XO complex with xanthine suggested that both compounds (HC and its analog) could simultaneously form hydrogen bonds with xanthine and XO.
Mild debenzylation of aryl benzyl ether with BCl3 in the presence of pentamethylbenzene as a non-lewis-basic cation scavenger
Okano, Kentaro,Okuyama, Kei-Ichiro,Fukuyama, Tohru,Tokuyama, Hidetoshi
scheme or table, p. 1977 - 1980 (2009/04/07)
Scope and limitations of the debenzylation conditions for aryl benzyl ether, which was developed during our synthetic studies on yatakemycin, were investigated. The chemoselective debenzylation proceeds at low temperature with a combination of BCl3 and pentamethylbenzene as a cation scavenger in the presence of various functional groups.
The synthesis of phenolic propane-1, 2- and 1,3-diols as intermediates in immobilised chelatants for the borate anion
Tyman, John H. P.,Payne
, p. 691 - 695 (2007/10/03)
The isomeric 3-(hydroxyphenyl)propane-1, 2-diols have been synthesised from allylic precursors by epoxidation and cleavage. Several different methods have been examined for obtaining 1-(methoxyphenyl)propane-1, 3-diols. 2-(methoxyphenyl)propane-1, 3-diols and certain hydroxy analogues have been obtained from benzaldoximes converted by oxidation to methoxy- and benzyloxynitromethylbenzenes followed by hydroxymethylation with formaldehyde and catalytic hydrogenation.