Method for preparing intermediate for synthesis of sphingosine-1-phosphate receptor agonist
US-12522554-B2 · Jan 13, 2026 · US
by elimination of carboxyl groups
by elimination of carboxyl groups · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C45/676 |
| Official title | {by elimination of carboxyl groups} |
| Display label | by elimination of carboxyl groups |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for preparing gamma,delta-unsaturated aldehydes derivatives
US-2025154090-A1 · May 15, 2025 · US
Process for preparing a cyclic diene
US-2025034074-A1 · Jan 30, 2025 · US
Phenanthrene-based compound having high refractive index and preparation method therefor
US-2024317664-A1 · Sep 26, 2024 · US
Process For Making Epoxide Derivatives of Farnesene and Use Thereof in Further Synthesis
US-2024287010-A1 · Aug 29, 2024 · US
Method for preparing intermediate for synthesis of sphingosine-1-phosphate receptor agonist
US-2024002322-A1 · Jan 4, 2024 · US
Process for manufacturing a substituted cyclohexanecarbonitrile
US-2022274913-A1 · Sep 1, 2022 · US
Synthesis of cyclopentenones
US-11292757-B2 · Apr 5, 2022 · US
Synthesis of alkyl 2-acetyl-5,9,13-trimethyltetradeca-4,8,12-trienoates and derivatives by a non-continuous production process
US-11274071-B2 · Mar 15, 2022 · US
Synthesis of cyclopentenones
US-2021206709-A1 · Jul 8, 2021 · US
Targeted, metal-catalyzed fluorination of complex compounds with fluoride ion via decarboxylation
US-10974235-B2 · Apr 13, 2021 · US
Synthesis of alkyl 2-acetyl-5,9,13-trimethyltetradeca-4,8,12-trienoates and derivatives by a non-continuous production process
US-2020308090-A1 · Oct 1, 2020 · US
Processes for preparing 4-methyl-5-nonanone and 4-methyl-5-nonanol
US-2020199052-A1 · Jun 25, 2020 · US
Targeted, metal-catalyzed fluorination of complex compounds with fluoride ion via decarboxylation
US-2020108380-A1 · Apr 9, 2020 · US
Targeted, metal-catalyzed fluorination of complex compounds with fluoride ion via decarboxylation
US-10543481-B2 · Jan 28, 2020 · US
Process for the preparation of organic bromides
US-10399917-B2 · Sep 3, 2019 · US
Practical method for manufacturing 3,3-difluoro-2-hydroxypropionic acid
US-10273200-B2 · Apr 30, 2019 · US
Process for the preparation of organic bromides
US-2018273450-A1 · Sep 27, 2018 · US
Targeted, metal-catalyzed fluorination of complex compounds with fluoride ion via decarboxylation
US-2018037526-A1 · Feb 8, 2018 · US
Practical Method for Manufacturing 3,3-Difluoro-2-Hydroxypropionic Acid
US-2018037533-A1 · Feb 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C45/676?
- CPC C07C45/676 is the Cooperative Patent Classification code for “by elimination of carboxyl groups.”
- How many patents are filed under CPC C07C45/676 (by elimination of carboxyl groups)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC C07C45/676 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).