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SIGMA-TAU INDUSTRIE FARMACEUTICHE RIUNITIE SPA

SIGMA-TAU INDUSTRIE FARMACEUTICHE RIUNITIE SPA Patent applications
Patent application numberTitlePublished
20100311784STEREOSELECTIVE PROCESS AND CRYSTALLINE FORMS OF A CAMPTOTHECIN - A stereoselective process for preparing 7-[(E)-t-butyloxyiminomethyl]-camptothecin (also known as gimatecan) is herein disclosed. With the addition of further dissolution and precipitation steps carried out in appropriate different solvent mixtures, four new crystalline forms of gimatecan are also obtainable by using the same stereoselective process.12-09-2010
20100311783STEREOSELECTIVE PROCESS AND CRYSTALLINE FORMS OF A CAMPTOTHECIN - A stereoselective process for preparing 7-[(E)-t-butyloxyiminomethyl]-camptothecin (also known as gimatecan) is herein disclosed. With the addition of further dissolution and precipitation steps carried out in appropriate different solvent mixtures, four new crystalline forms of gimatecan are also obtainable by using the same stereoselective process.12-09-2010