- A 16, 17-double-alkoxy Anthracyclinone purple method for preparing derivatives of
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The invention discloses a method for preparing 16,17-dialkoxyviolanthrone derivatives. A readily available 16,17-dimethoxyviolanthrone dye is used as an initial raw material, a 16,17-dihydroxyviolanthrone intermediate is prepared through demethylation, and the corresponding 16,17-dialkoxyviolanthrone derivatives are synthesized through Williamson ether synthesis reaction. The method has the characteristics of short whole reaction route, high yield, mild reaction conditions and low cost.
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Paragraph 0033; 0034; 0035
(2016/12/01)
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