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Legal status
Patent lapsed (non-payment of fees)
| (51) | INT.CL.: (2006.01) |
A61K 31/00 A61K 31/495 A61K 31/496 A61P 43/00 C07D 317/00 C07D 405/00 |
| (11) | Number of the document | 4540 |
| (13) | Kind of document | B |
| (21) | Application number | 98-132 |
| (22) | Date of filing the application | 1998-09-18 |
| (41) | Date of publication of the application | 1999-03-25 |
| (45) | Date of publication of patent | 1999-08-25 |
| (86) | Number | PCT/US97/03466 |
| Date | 1997-03-17 |
| (87) | Number | WO 97/34887 |
| Date | 1997-09-25 |
| (30) | Number | Date | Country code |
| 013955 | 1996-03-22 | US |
| (71) |
Du Pont Pharmaceuticals Company,
11007 Market Street, Wilmington, Delaware 19898,
US
|
| (72) |
Hui-Yin LI, US
Luigi ANZALONE, US Robert Eugene WALTERMIRE, US |
| (73) |
Du Pont Pharmaceuticals Company,
11007 Market Street, Wilmington, Delaware 19898,
US
|
| (74) |
Reda ŽABOLIENĖ,
METIDA, Verslo centras "VERTAS", Gynėjų g. 16, LT-01109 Vilnius,
LT
|
| (54) | NOVEL ASYMMETRIC SYNTHESIS OF R-alfa-PROPYL-PIPERONYL AMINE AND ITS ANALOGS |
| Payment date | Validity (years) | Amount | |
| 2000-02-10 | 4 | 320.00 LTL |
| Patent lapsed (non-payment of fees) | ||
| Invalidation date | 2001-03-17 |