C07B 55/00
Racemisation
Official title: Racemisation; Complete or partial inversion
C07B55/00 (Racemisation) appears on 51 US grants and 39 published applications in this corpus.
Search patents in C07B- Granted patents
- 51
- Published applications
- 39
- Assignees
- 51
- Inventors
- 152
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 3 |
| 2010 | 1 | 4 |
| 2011 | 1 | 5 |
| 2012 | 5 | 3 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 3 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 4 | 5 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Photochemical process for producing (4R,4S)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-3-carboxamide26 Aug 2025US 12,398,144 B2Bayer Aktiengesellschaft
- Processes and intermediates for preparing a Btk inhibitor15 Jul 2025US 12,358,917 B2Janssen Pharmaceutica NV
- Method for racemisation of (5R)-4-[5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4H¬isoxazol-3-yl]-2-methyl-benzoic acid3 Sep 2024US 12,077,514 B2Intervet Inc.
- Synthesis of tipifarnib3 Jan 2023US 11,542,244 B2Kura Oncology, Inc.
- Process for preparation of optically pure and optionally substituted 2-(1-hydroxy-alkyl)-chromen-4-one derivatives and their use in preparing pharmaceuticals25 Oct 2022US 11,478,481 B2Rhizen Pharmaceuticals SA
- Improved synthetic methods for making lactones3 Jul 2025US 2025/0214955 A1
- Photochemical process for producing (4r,4s)-4-(4-cyano-2-methoxyphenyl)-5-ethoxy-2,8-dimethyl-1,4-dihydro-1,6-naphthyridin-3-carboxamide9 May 2024US 2024/0150357 A1Bayer Aktiengesellschaft
- Method for racemic preparation of chiral b-amino acids and derivatives thereof11 May 2023US 2023/0142248 A1Zhejiang Jiuzhou Pharmaceutical Co., Ltd.
- Processes and intermediates for preparing a btk inhibitor6 Apr 2023US 2023/0107573 A1Janssen Pharmaceutica NV
- Akr1c3 inhibitor and medical use11 Aug 2022US 2022/0251021 A1Ascentawits Pharmaceuticals, Ltd.
Most cited
By later US patents
- Racemization and asymmetric transformation processes used in the manufacture of levobupivacaine and analogues thereof38US 5,786,484 AChiroscience Limited · 1998
- Process for the production of specific isomer mixtures from oxindole alkaloids22US 5,723,625 AImmodal Pharmaka Gesellschaft m.b.H · 1998
- Process for racemizing optically active .alpha.-amino acids or a salt thereof19US 4,401,820 ATanabe Seiyaku Co., Ltd. · 1983
- Novel racemization process15US 4,151,195 ARoussel Uclaf · 1979
- Process for the production of xylitol11US 5,714,602 ACerestar Holding B. V. · 1998