125072-69-7Relevant articles and documents
Radical and superoxide scavenging activities of matairesinol and oxidized matairesinol
Yamauchi, Satoshi,Sugahara, Takuya,Nakashima, Yuki,Okada, Akihiro,Akiyama, Koichi,Kishida, Taro,Maruyama, Masashi,Masuda, Toshiya
, p. 1934 - 1940 (2008/02/08)
The radical and superoxide scavenging activities of oxidized matairesinols were examined. It could be assumed that the free benzylic position was important for higher radical scavenging activity. The different level of activity was observed between 7′-oxomatairesinol (Mat 2) and 7-oxomatairesinol (Mat 3). The activity of 8-hydroxymatairesinol was lower than that of matairesinol (Mat 1). The superoxide scavenging activity of the oxidized matairesinols was also demonstrated for the first time. It is assumed that the pKa value of phenol in the oxidized matairesinols affected this activity.
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Khamlach, Melle Kenza,Dhal, Robert,Brown, Eric
, p. 10115 - 10126 (2007/10/02)
Racemic and optically active α,β-dibenzyl-γ-butyrolactones (of synthetic origin) were hydroxylated in the α position with respect to the carbonyl group, using oxygen in the presence of LHDS. This led to (-)-trachelogenin 1, (-)-nortrachelogenin 2 and (+)-
Total Synthesis of (+/-)-Wikstromol
Belletire,John L.,Fry,Douglas F.
, p. 4724 - 4729 (2007/10/02)
The antineoplastic prototype lignan natural product wikstromol was synthesized in racemic form by a straightforward sequence involving, as its key transformations,oxidative coupling of a carboxylic acid dianion,generation and stereoselective oxidation of a potassium enolate,and a deprotection step.The overall yield for nine steps is 29percent.Depending on the choice of oxidants for the enolate,considerable modification in the ratio of stereoisomeric products is possible.