A New Process for the Total Synthesis of Sparstolonin B
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http://www.thieme-connect.com/DOI/DOI?10.1055/s-0036-1588723
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资源简介：
A novel and simple route was developed that gives sparstolonin B in high yields from affordable commercial compounds. A Diels–Alder strategy was used for the facile construction of the multisubstituted diphenyl ether. The xanthenone segment was obtained by cyclization in an intramolecular Friedel–Crafts reaction, followed by selective reduction of a ketone group and a transformation from a hydroxy group into a cyano group. The final part of the lactone was directly derived by the reduction of the cyano group with Raney nickel.
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© Georg Thieme Verlag
创建时间：
2017-02-23
