Article ID Journal Published Year Pages File Type
5224435 Tetrahedron 2009 4 Pages PDF
Abstract

The development of an efficient dehydration method of steroidal 4-en-3-ones by using chloranil and BSTFA in the presence of triflic acid in refluxing toluene allowed us, starting from testosterone, to set a large-scale procedure for the synthesis of the anti-cancer drug exemestane in 70% overall yield.

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Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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