C07C 231/18
By stereospecific synthesis
Official title: by stereospecific synthesis
C07C231/18 (By stereospecific synthesis) appears on 210 US grants and 157 published applications in this corpus.
Search patents in C07C- Granted patents
- 210
- Published applications
- 157
- Assignees
- 134
- Inventors
- 535
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 8 |
| 2003 | 15 | 15 |
| 2004 | 7 | 12 |
| 2005 | 8 | 10 |
| 2006 | 7 | 10 |
| 2007 | 9 | 10 |
| 2008 | 6 | 7 |
| 2009 | 7 | 14 |
| 2010 | 9 | 7 |
| 2011 | 6 | 11 |
| 2012 | 8 | 11 |
| 2013 | 12 | 10 |
| 2014 | 7 | 8 |
| 2015 | 8 | 4 |
| 2016 | 7 | 3 |
| 2017 | 2 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 1 |
| 2020 | 2 | 2 |
| 2021 | 2 | 4 |
| 2022 | 2 | 1 |
| 2023 | 0 | 2 |
| 2024 | 3 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process of making 3-(4′-aminophenyl)-2-methoxypropionic acid, and analogs and intermediates thereof30 Dec 2025US 12,509,416 B2Nogra Pharma Limited
- Processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate7 Oct 2025US 12,435,028 B2Celgene Corporation
- Metal complex, intermediate, and preparation method and application thereof8 Oct 2024US 12,110,302 B2Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
- Processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate27 Feb 2024US 11,912,644 B2Celgene Corporation
- Process of making 3-(4′-aminophenyl)-2-methoxypropionic acid, and analogs and intermediates thereof20 Feb 2024US 11,905,232 B2Nogra Pharma Limited
- Process of making 3-(4'-aminophenyl)-2-methoxypropionic acid, and analogs and intermediates thereof12 Dec 2024US 2024/0409498 A1Nogra Pharma Limited
- Processes for the preparation of (s)-tert-butyl 4,5-diamino-5-oxopentanoate25 Jul 2024US 2024/0246899 A1Celgene Corporation
- Processes for the preparation of (s)-tert-butyl 4,5-diamino-5-oxopentanoate27 Jul 2023US 2023/0234914 A1Celgene Corporation
- Metal complex, intermediate, and preparation method and application thereof13 Apr 2023US 2023/0114794 A1Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences
- Process of making 3-(4'-aminophenyl)-2-methoxypropionic acid, and analogs and intermediates thereof23 Jun 2022US 2022/0194894 A1Nogra Pharma Limited
Most cited
By later US patents
- Amino alcohol derivative and method for preparing the same33US 6,335,444 B12002
- Ferrocenyl diphosphines as ligands for homogeneous catalysts30US 5,371,256 ACiba-Geigy Corporation · 1994
- Amino alcohol derivative and method for preparing the same30US 5,907,039 ASeikagaku Kogyo Kabushiki Kaisha · 1999
- Process for the preparation of chiral beta amino acid derivatives by asymmetric hydrogenation26US 7,468,459 B2Merck & Co., Inc. · 2008
- Process for the enantioselective preparation of phenylisoserine derivatives25US 5,292,921 ARhone-Poulenc Rorer S.A. · 1994