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US08138358B2 Synthesis of polycyclic procyanidins 有权
多环原花青素的合成

Synthesis of polycyclic procyanidins
摘要:
The invention provides compounds that are A-type procyanidins. The compounds can be prepared by reacting flavylium salts with catechins or analogs thereof, for example, under anhydrous conditions in alcohol.
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