Methods for preparing bile acids
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 2, 2021
Grant Date -
Nov 26, 2020
app pub date -
Aug 3, 2018
filing date -
Aug 3, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present disclosure provides methods of preparing cholic acid, deoxycholic acid, or chenodeoxycholic acid, an ester thereof, or a pharmaceutically or cosmetically acceptable salt thereof, and novel and useful synthetic intermediates, for example, as described for methods 1, 1A, 1B, 2, 3, 3A, and 4. The method can start with a plant derived steroid as a starting material, such as dehydroepiandrosterone (DHEA) or Acetyl-dehydroepiandrosterone (Ac-DHEA). Also provided are pharmaceutical or cosmetic compositions and uses thereof, which comprise one or more of cholic acid, deoxycholic acid, or chenodeoxycholic acid, an ester thereof, or a pharmaceutically or cosmetically acceptable salt thereof, which is of high purity, for example, free of animal derived impurities.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2018 Application Filing Year
- C07J Class
- 162 Applications Filed
- 93 Patents Issued To-Date
- 57.41 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C07J Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | May 2, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 2, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 2, 2033 |
