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Camptothecin derivatives as chemoradiosensitizing agents Grant US-8563537-B2 United States of America 22 Oct 2013
Crystalline form II of 7-(dimethoxy-methyl) camptothecin, its use as intermediate and… Grant US-8269007-B2 United States of America 18 Sep 2012
Method of manufacturing of 7-ethyl-10-hydroxycamptothecin Grant US-8039626-B2 United States of America 18 Oct 2011