C07D 453/04
Having a quinolyl-4, a substituted quinolyl-4 or a alkylenedioxy-quinolyl-4 radical linked through
Official title: having a quinolyl-4, a substituted quinolyl-4 or a alkylenedioxy-quinolyl-4 radical linked through only one carbon atom, attached in position 2, e.g. quinine
C07D453/04 (Having a quinolyl-4, a substituted quinolyl-4 or a alkylenedioxy-quinolyl-4 radical linked through) appears on 115 US grants and 103 published applications in this corpus.
Search patents in C07D- Granted patents
- 115
- Published applications
- 103
- Assignees
- 97
- Inventors
- 375
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 7 |
| 2004 | 5 | 5 |
| 2005 | 2 | 5 |
| 2006 | 7 | 4 |
| 2007 | 2 | 5 |
| 2008 | 1 | 3 |
| 2009 | 4 | 4 |
| 2010 | 3 | 1 |
| 2011 | 1 | 9 |
| 2012 | 1 | 4 |
| 2013 | 5 | 3 |
| 2014 | 6 | 6 |
| 2015 | 8 | 5 |
| 2016 | 9 | 4 |
| 2017 | 5 | 10 |
| 2018 | 4 | 0 |
| 2019 | 4 | 4 |
| 2020 | 4 | 3 |
| 2021 | 2 | 5 |
| 2022 | 3 | 4 |
| 2023 | 3 | 4 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Three-dimensional organic sandwich chirality and its synthetic assembly23 Dec 2025US 12,503,481 B2Texas Tech University System
- Nitrosation reagents and methods4 Nov 2025US 12,459,909 B2The Regents of the University of California
- Methods for extraction, processing, and purification of a selected family of target compounds from cannabis31 Oct 2023US 11,802,118 B2Nectar Health Sciences Inc.
- Environmentally-friendly hydroazidation of olefins25 Jul 2023US 11,708,320 B2Georgia State University Research Foundation, Inc.
- Synthetic dimeric cinchona alkaloids against cancer16 May 2023US 11,649,232 B2Ares Pharmaceuticals, LLC
- Organic Photoredox Catalysts, Compositions, and Conversion Processes24 Sep 2026US 2026/0284647 A1Colorado State University Research Foundation
- Intermolecular cyclopropanation of unsaturated hydrocarbons20 Aug 2026US 2026/0242327 A1The Penn State Research Foundation
- Nitrosation Reagents and Methods9 Apr 2026US 2026/0098021 A1
- Photocatalysts, preparation and use thereof4 Dec 2025US 2025/0367649 A1The Royal Institution for the Advancement of Learning/Mcgill University
- A method for obtaining l-glufosinate15 Aug 2024US 2024/0270768 A1Upl Ltd
Most cited
By later US patents
- Zirconium phosphate and method for its preparation138US 4,826,663 AEniricerche S. p. A. · 1989
- Ligands for ADH: cinchona alkaloids and moderately sized organic substituents linked through a planar aromatic spacer group28US 5,260,461 AMassachusetts Institute of Technology · 1993
- Catalytic enantioselective synthesis of .alpha.-amino acid derivatives by phase-transfer catalysis23US 5,554,753 AIndiana University Foundation · 1996
- Facilitation of turnover in the ADH by additives which catalyze the hydrolysis of the OS(VI) glycolate esters18US 5,227,543 AMassachusetts Institute of Technology · 1993
- Bis-quaternary cinchona alkaloid salts as asymmetric phase transfer catalysts17US 9,376,431 B2Merck Sharp & Dohme Corp. · 2016