202415-95-0Relevant academic research and scientific papers
An improved and efficient synthesis for IPL576,092 and its analogues
Liu, Jin,Huang, Rong,Zhu, Hongyou
, p. 1081 - 1085 (2013)
An improved and efficient preparation of IPL576,092 was developed. The synthetic route involves selective allylic oxidation of a? 5-sterols and subsequent hydroboration-oxidation as the key steps. In addition, two analogues were readily synthesized from commercially available steroidal compounds in two steps in the same way.
Efficient synthesis of IPL576,092: a novel anti-asthma agent.
Shen, Yaping,Burgoyne, David L
, p. 3908 - 3910 (2002)
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 nine steps with overall yields of 25%, employing a limited number of chromatographic steps.
SYNTHESIS OF A SUBSTITUTED INDENE DERIVATIVE
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Paragraph 0326; 0334; 0335, (2017/08/07)
This invention is directed to methods of preparing AQX-1125 having the formula: This invention is also directed to intermediates utilized in the methods of preparing AQX-1125.
