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Legal status
Patent not validated
| (51) | INT.CL. | C07J 53/00 |
| (11) | Number of the document | 2551275 |
| (13) | Kind of document | T |
| (96) | European patent application number | 12177558.9 |
| Date of filing the European patent application | 2012-07-24 | |
| (97) | Date of publication of the European application | 2013-01-30 |
| (45) | Date of publication and mention of the grant of the patent | 2015-07-01 |
| (46) | Date of publication of the claims translation |
| (30) | Number | Date | Country code |
| MI20111383 | 2011-07-25 | IT |
| (72) |
Lenna, Roberto, IT
Barbieri, Francesco, IT
Giudici, Daniele, IT
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| (73) |
INDUSTRIALE CHIMICA S.r.l.,
Via Abbondio Sangiorgio 12, 20145 Milano,
IT
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| (54) | Process for the preparation of drospirenone |
| Process for the preparation of drospirenone |