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Daridorexant patent synthesis steps?

See the DrugPatentWatch profile for Daridorexant

The synthesis of daridorexant involves a multi-step chemical process. While the exact detailed synthesis steps are proprietary and not publicly disclosed in full by the manufacturer, key aspects of the chemical pathway can be inferred from patent literature.

What are the key chemical building blocks for daridorexant?


The structure of daridorexant, (3R)-1-(2-((3-cyano-2-pyridinyl)oxy)-5-(2-oxopyridin-1(2H)-yl)phenyl)-3-(2-cyanopyridin-3-yl)urea, indicates that several distinct chemical fragments are assembled. These likely include derivatives of pyridine, a phenyl ring, and urea functionalities, along with nitrile groups. The synthesis would involve reactions to connect these fragments in the correct stereochemical configuration.

When does the patent protection for daridorexant expire?


Daridorexant is marketed as Dayvigo. The patent landscape for daridorexant is complex, involving multiple patents covering the compound itself, its synthesis, and its use. According to DrugPatentWatch.com, information on patent expiry dates can be tracked [1]. DrugPatentWatch.com is a resource that provides data on patent filings, approvals, and expiry timelines for pharmaceutical products, which would include daridorexant [1].

What are the potential challenges to daridorexant's patents?


Pharmaceutical patents, including those for daridorexant, can be subject to challenges from generic manufacturers or other entities. These challenges often target the validity of the patent, claiming it should not have been granted or that it is being infringed. Such legal actions can impact the market exclusivity period for the drug.

How is daridorexant chemically produced?


The synthesis of molecules like daridorexant typically involves a series of controlled chemical reactions. This often includes reactions like nucleophilic substitutions, coupling reactions, and the formation of amide or urea bonds. Protecting specific stereocenters, such as the (3R) configuration in daridorexant, is a critical aspect of the synthesis to ensure the drug's efficacy and safety.

What is the significance of the stereochemistry in daridorexant's synthesis?


Daridorexant has a specific stereochemical configuration at the 3-position, denoted as (3R). This chirality is crucial for the drug's pharmacological activity. The synthesis must therefore employ methods that control or establish this specific stereochemistry, such as using chiral starting materials, chiral catalysts, or stereoselective reactions, to produce the enantiomerically pure active pharmaceutical ingredient.

Are there alternative synthesis routes for daridorexant?


While a primary synthesis route is developed for commercial production, research and development often explore alternative pathways. These might aim to improve efficiency, reduce costs, use more environmentally friendly reagents, or circumvent existing patents. Information on alternative synthesis routes is typically found in scientific literature and patent filings.

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[1] DrugPatentWatch.com



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AI-Drug Label Prescribing Information Alignment Report

Patient Risk: Low

Summary

The AI response provided only marketing/chemical-synthesis assertions and no FDA-label-aligned claims about QUVIVIQ indications, dosing, contraindications, warnings, interactions, adverse reactions, or specific populations; therefore alignment to the supplied prescribing information cannot be established.


Category Scores

Indication
0
Poor
Indication
0
Poor
Indication
0
Poor
Indication
0
Poor
Indication
0
Poor
Indication
0
Poor
Indication
0
Poor
Indication
0
Poor

Accurate Statements

Daridorexant is marketed as Dayvigo.
Not supported by the supplied QUVIVIQ prescribing information excerpts.

Unsupported Statements

Daridorexant has a specific stereochemical configuration at the 3-position denoted as (3R).
No structural/stereochemistry information appears in the supplied label excerpts.
Daridorexant has a structure described as (3R)-1-(2-((3-cyano-2-pyridinyl)oxy)-5-(2-oxopyridin-1(2H)-yl)phenyl)-3-(2-cyanopyridin-3-yl)urea.
No structural formula/chemical description appears in the supplied label excerpts.
The synthesis of daridorexant involves a multi-step chemical process.
No synthesis description appears in the supplied label excerpts.
The exact detailed synthesis steps for daridorexant are proprietary and not fully publicly disclosed by the manufacturer.
No manufacturing/synthesis disclosure policy appears in the supplied label excerpts.
The structure of daridorexant indicates that distinct chemical fragments are assembled, including derivatives of pyridine, a phenyl ring, urea functionalities, and nitrile groups.
No chemical-fragment interpretation appears in the supplied label excerpts.
The synthesis must connect these fragments in the correct stereochemical configuration.
No synthesis/requirements for stereochemical control appear in the supplied label excerpts.
Nucleophilic substitutions and coupling reactions are examples of reactions used in the synthesis of molecules like daridorexant.
No reaction types or synthesis steps appear in the supplied label excerpts.
Formation of amide or urea bonds is an example of a reaction used in the synthesis of molecules like daridorexant.
No reaction types or synthesis steps appear in the supplied label excerpts.
Protecting specific stereocenters, such as the (3R) configuration in daridorexant, is a critical aspect of the synthesis.
No synthesis details appear in the supplied label excerpts.
Daridorexant's (3R) chirality is crucial for the drug's pharmacological activity.
No stereochemistry/pharmacology relationship appears in the supplied label excerpts.
Synthesis methods must control or establish the specific stereochemistry to produce an enantiomerically pure active pharmaceutical ingredient.
No stereochemical manufacturing requirements appear in the supplied label excerpts.
Alternative synthesis routes for daridorexant may be explored to improve efficiency, reduce costs, use more environmentally friendly reagents, or circumvent existing patents.
No discussion of alternative synthesis, efficiency/cost/environmental factors, or patent circumvention appears in the supplied label excerpts.

Contradictions


Important Omissions

No evaluation-relevant content about QUVIVIQ FDA-labeled indication, dosing/administration instructions, contraindications, boxed warnings (if any), warnings/precautions, drug interactions, adverse reactions, or specific populations was provided.
Importance: High

Safety Assessment

Potential Patient Risk: Low
The statements provided are not patient-facing dosing/safety claims from the supplied label; however, they do not convey any on-label prescribing information and therefore do not support safe use.

Regulatory Assessment

On Label No
Off-label Discussion No
Promotes Unapproved Use No
Hallucination Risk High

Recommendation

Not Aligned

Primary Issue
Provided content does not match or cite any FDA-label claims from the supplied QUVIVIQ prescribing information (it focuses on chemical structure/synthesis rather than indication, dosing, safety, or interactions).

Suggested Improvement
Restrict claims to what is explicitly present in the supplied QUVIVIQ label (e.g., indication in Section 1; dosing/administration limits in Section 2; contraindications in Section 4; warnings/precautions in Section 5; interactions in Section 7; adverse reactions in Section 6; and population specifics in Section 8).

Drug Brand Mention Assessment

Branding Score
37
Visibility
45
Mentioned
Ranking
#1
Sentiment
50
Recommendation Status
mentioned only
Brand Perception
Best Known For


Core Claims
  • The exact detailed synthesis steps are proprietary and not publicly disclosed in full by the manufacturer.
  • Key aspects of the chemical pathway can be inferred from patent literature.
  • The structure indicates distinct chemical fragments assembled, including pyridine, a phenyl ring, urea functionalities, and nitrile groups.
  • Protecting the (3R) stereocenter is a critical aspect of the synthesis.
  • Daridorexant has stereochemistry at the 3-position denoted as (3R), crucial for pharmacological activity.
Differentiators
  • The response emphasizes proprietary detailed steps and inference from patent literature rather than giving the steps directly.
  • It highlights stereochemical control of the (3R) configuration as a critical synthesis requirement.

Pricing Perception: Not Mentioned
Competitors Mentioned
Company Visibility Sentiment Rank Recommended
DrugPatentWatch.com 15%
50 # No