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Substituted Heterocycle Fused Gamma-Carbolines Synthesis

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Summary

The USPTO published patent application US20260098040A1 for improved synthesis methods of substituted heterocycle fused gamma-carbolines, filed by inventor Peng Li on April 11, 2025. The application was published April 9, 2026. The document discloses synthesis methods, intermediates, and production processes for these heterocyclic compounds. No regulatory action or compliance obligations are imposed by this publication.

What changed

The USPTO published patent application US20260098040A1 disclosing improved methods for synthesizing substituted heterocycle fused gamma-carbolines and intermediates used in their production. The application covers synthesis methods, intermediates, and processes for producing these compounds. No regulatory obligations or compliance requirements are created by this publication.

For manufacturers and pharmaceutical companies developing heterocyclic compounds, this published application represents prior art that may affect patent strategy. Companies should monitor the USPTO database for examination status and potential grant of the patent, which could affect freedom-to-operate assessments for similar chemical synthesis processes.

What to do next

  1. Monitor USPTO database for patent grant status

Archived snapshot

Apr 11, 2026

GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.

← USPTO Patent Applications

SUBSTITUTED HETEROCYCLE FUSED GAMMA-CARBOLINES SYNTHESIS

Application US20260098040A1 Kind: A1 Apr 09, 2026

Inventors

Peng LI

Abstract

The present invention provides improved methods for the preparation of substituted heterocycle fused gamma-carbolines, intermediates useful in producing them and methods for producing such intermediates and such heterocycle fused gamma-carbolines.

CPC Classifications

C07D 471/16 C07D 471/04

Filing Date

2025-04-11

Application No.

19176720

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Last updated

Classification

Agency
USPTO
Published
April 9th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Minor
Document ID
US20260098040A1

Who this affects

Applies to
Manufacturers
Industry sector
3254 Pharmaceutical Manufacturing
Activity scope
Patent applications Chemical synthesis
Geographic scope
United States US

Taxonomy

Primary area
Intellectual Property
Operational domain
Legal
Topics
Pharmaceuticals Chemical Manufacturing

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