Processes for preparing amine salts of sildenafil-analogues and use thereof
US8497370B2 · kind B2 · utility
2Cited by
20References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Jun 15, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L5/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A series of amine salts including a structure of formula (I) and formula (III) have provided. In formula I or formula (III), R1, Ra and RX are as defined in the specification. The amine complex salts disclosed in the present invention are characterized in a pro-drug active form and various pharmaceutical function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.