Abstract: ?A NOVEL PROCESS FOR THE PREPARATION OF (6R)-6-(2-(N-(4-(2-(ETHYLAMINO) ETHYL) BENZYL)-N-ETHYLAMINO)-4-METHOXYPHENYL)-5,6,7,8-TETRAHYDRONAPHTHALEN-2-OL DIHYDROCHLORIDE AND IT’S INTEMEDIATES ? The present invention relates to a process for the preparation of (6R)-6-(2-(N-(4-(2-(ethylamino)ethyl)benzyl)-N-ethylamino)-4-methoxyphenyl)-5,6,7,8-tetrahydro nap- hthalen-2-ol dihydrochloride (1) and its novel intermediates thereof. Elacestrant dihydrochloride (1) The present invention further relates to a process for the preparation of intermediates of formula (3), formula (4), formula (4a), formula (5), formula (5a), formula (6), formula (6a), formula (7), formula (7a), formula (9) and formula (10). with enantiomeric excess greater than 50%.
DESC:Enclosed ,CLAIMS:Enclosed
| # | Name | Date |
|---|---|---|
| 1 | 202441027906-PROVISIONAL SPECIFICATION [04-04-2024(online)].pdf | 2024-04-04 |
| 2 | 202441027906-FORM 1 [04-04-2024(online)].pdf | 2024-04-04 |
| 3 | 202441027906-Proof of Right [09-10-2024(online)].pdf | 2024-10-09 |
| 4 | 202441027906-FORM-5 [04-04-2025(online)].pdf | 2025-04-04 |
| 5 | 202441027906-COMPLETE SPECIFICATION [04-04-2025(online)].pdf | 2025-04-04 |
| 6 | 202441027906-Covering Letter [08-05-2025(online)].pdf | 2025-05-08 |