Bifunctional chiral organocatalytic compound having excellent enantioselectivity, preparation method therefor, and method for producing non-natural gamma-amino acid from nitro compound by using same
US-11465135-B2 · Oct 11, 2022 · US
2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles
2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles · 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 | C07D207/28 |
| Official title | 2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles |
| Display label | 2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 8 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Solid Forms of Fasoracetam
US-2021355102-A1 · Nov 18, 2021 · US
Fasoracetam Crystalline Forms
US-2021047288-A1 · Feb 18, 2021 · US
Therapeutically active compounds and their methods of use
US-2021024575-A1 · Jan 28, 2021 · US
Bifunctional chiral organocatalytic compound having excellent enantioselectivity, preparation method therefor, and method for producing non-natural gamma-amino acid from nitro compound by using same
US-2020406243-A1 · Dec 31, 2020 · US
Composition for the modulation of the activity of non-structure proteins
US-10759752-B2 · Sep 1, 2020 · US
Therapeutically active compounds and their methods of use
US-10717764-B2 · Jul 21, 2020 · US
Therapeutically active compositions and their methods of use
US-10640534-B2 · May 5, 2020 · US
Novel onium salt, chemically amplified resist composition, and patterning process
US-2020133122-A1 · Apr 30, 2020 · US
Pharmaceutical agent that binds the p2x7 receptor
US-2020123104-A1 · Apr 23, 2020 · US
Process for preparing alkyl pyroglutamic acids
US-10577319-B2 · Mar 3, 2020 · US
Complex of a glucopyranosyl derivative and preparation method and use thereof
US-10555930-B2 · Feb 11, 2020 · US
Activation of carbonyl beta-carbons for chemical transformations
US-2019337955-A1 · Nov 7, 2019 · US
Therapeutically active compounds and their methods of use
US-2019315802-A1 · Oct 17, 2019 · US
Tricyclic sulfones as ROR gamma modulators
US-10435369-B2 · Oct 8, 2019 · US
Vortioxetine Pyroglutamate
US-2019210987-A1 · Jul 11, 2019 · US
Composition for the modulation of the activity of non-structure proteins
US-2019161446-A1 · May 30, 2019 · US
Ertugliflozin co-crystals and process for their preparation
US-10294239-B2 · May 21, 2019 · US
Vortioxetine pyroglutamate
US-10287261-B2 · May 14, 2019 · US
Production of pyrrolidine derivatives
US-10280140-B2 · May 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07D207/28?
- CPC C07D207/28 is the Cooperative Patent Classification code for “2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles.”
- How many patents are filed under CPC C07D207/28 (2-Pyrrolidone-5- carboxylic acids; Functional derivatives thereof, e.g. esters, nitriles)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC C07D207/28 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).