Yaping Shen

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An enantioseletive synthesis of the novel anti-asthma agent IRL576,092 (2) is described. The synthetic route developed involves stereoselective 1,2-reduction of the enone carbonyl functionality of 6 and subsequent hydroboration as the key steps. Starting from the commercially available 5-androsten-3beta-ol-17-one 3, this approach affords IPL576,092 (2) in(More)
The rapid development of the Web technology makes the Web mining become the focus of the current data mining, and the XML technology also becomes the standard of the data exchange on the Web. The paper introduces the Web mining technology, implements a frame of the Web mining based on the XML technology according to the advantage of XML in the data(More)
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