Synthesis of key intermediate of KRAS G12C inhibitor compound

US12391689B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12391689-B2
Application numberUS-202217689741-A
CountryUS
Kind codeB2
Filing dateMar 8, 2022
Priority dateNov 16, 2018
Publication dateAug 19, 2025
Grant dateAug 19, 2025

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention relates to an improved, efficient, scalable process to prepare intermediate compounds, such as compound 5M, having the structure useful for the synthesis of compounds that target KRAS G12C mutations, such as

First claim

Opening claim text (preview).

What is claimed is: 1. A composition, the composition comprising a compound of Formula 4: and a compound of Formula B: 2. The composition of claim 1 , wherein the compound of Formula 4 is: 3. The composition of claim 1 , wherein the compound of Formula 4 is: 4. The composition of claim 1 , wherein the compound of Formula B is: 5. The composition of claim 1 , wherein the compound of Formula B is: 6. The composition of claim 1 , wherein the composition comprises a 2 to 1 ratio of the compound of Formula 4 to the compound of Formula B. 7. The composition of claim 1 , wherein the composition further comprises 2-methyltetrahydrofuran having the formula: 8. The composition of claim 7 , wherein the ratio of the 2-methyltetrahydrofuran to the compound of formula B is 2 to 1. 9. The composition of claim 7 , wherein the composition comprises: 10. The composition of claim 9 , wherein the composition comprises: 11. The composition of claim 9 , wherein the composition comprises: 12. The composition of claim 9 , wherein the composition comprises: 13. The composition of claim 9 , wherein the composition comprises:

Assignees

Inventors

Classifications

  • Separation of optically-active compounds · CPC title

  • C07C309/24Primary

    of a carbon skeleton containing six-membered aromatic rings · CPC title

  • Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring · CPC title

  • with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms · CPC title

  • C07D471/04Primary

    Ortho-condensed systems · CPC title

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Frequently asked questions

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What does patent US12391689B2 cover?
The present invention relates to an improved, efficient, scalable process to prepare intermediate compounds, such as compound 5M, having the structure useful for the synthesis of compounds that target KRAS G12C mutations, such as
Who is the assignee on this patent?
Amgen Inc
What technology area does this patent fall under?
Primary CPC classification C07C309/24. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Aug 19 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).