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Us8158616b2 google patents baricitinib synthesis?

See the DrugPatentWatch profile for baricitinib

What is US8158616B2 (Google Patents) in relation to baricitinib?

US8158616B2 is a patent record that can be found via Google Patents for “baricitinib,” but the exact scope depends on the claims and the specific document family version shown on Google Patents. Google Patents is the right starting point if you want the formal title, assignee, filing/publication dates, and the full claim language.

What does the patent actually cover: the active drug or a specific intermediate/synthesis route?

Most “drug synthesis” searches on Google Patents come back to documents that cover one of three things:
- A process to make baricitinib (a manufacturing step or overall route)
- A key intermediate used to build baricitinib
- A set of reaction conditions (reagents, solvents, catalysts, temperatures, etc.) tied to a particular transformation

US8158616B2 may include one or more of those categories. To identify which, you typically need to look at:
- The independent claims (these usually define the protected process)
- The examples (these show the specific step-by-step synthesis)
- The description sections tied to “preparation,” “example,” or “intermediate”

If you share the Google Patents link (or the patent’s title from the page), I can tell you which synthesis/intermediate claims the document is centered on and summarize the route at the right level.

How to find the exact “synthesis” section inside the patent

On Google Patents, once you open US8158616B2, the synthesis-related content is usually located by searching within the document for terms like:
- “Example”
- “Preparation”
- “intermediate”
- “compound”
- “reacted with”
- “step”
- “was prepared by”

This is where you’ll find the actual reaction sequences (starting materials → reagents/conditions → intermediate(s) → baricitinib).

Why the synthesis details matter for patent scope

Even when a patent is clearly about making baricitinib, the enforceable scope often turns on specific details in the claims:
- Whether the claims cover a particular intermediate by structure/name
- Whether the claims cover a “method of preparing” with defined conditions
- Whether there are optional ranges (e.g., temperature, solvent, equivalents)
- Whether multiple steps are required as written in the claim

That’s why two “baricitinib synthesis” patents can look similar in the examples but differ in legal coverage.

Where patent status/exclusivity info might help (DrugPatentWatch)

If your goal is broader than just finding synthesis text—such as understanding whether baricitinib manufacturing/process IP is still active—you may also want to cross-check DrugPatentWatch.com, which aggregates patent and exclusivity information for drug products.
You can search DrugPatentWatch for baricitinib here: https://www.drugpatentwatch.com/

Quick next step

Send either:
1) the Google Patents URL for US8158616B2, or
2) the patent title/assignee shown on Google Patents, or
3) the specific intermediate/step you care about (e.g., “the step that forms X”)

and I’ll summarize the synthesis route described in the patent’s examples and map it to the relevant claim scope.

Sources



Other Questions About Baricitinib :

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AI-Drug Label Prescribing Information Alignment Report

Patient Risk: Unknown

Summary

Unable to verify whether any AI-generated statements match the FDA-approved OLUMIANT label because the provided AI response is not substantively included as a comparable drug-label-aligned answer, and the excerpt content is described/assessed without providing the exact label text used by the AI to justify alignment.


Category Scores

Warnings
35
Poor

Accurate Statements

The provided warning content topics correspond to OLUMIANT label sections 5.1–5.5 (serious infections, mortality, malignancy/lymphoproliferative disorders with NMSC, MACE, thrombosis).
Supported by the presence of cited section references (5.1–5.5) in the supplied excerpts.
Within the serious infections warning, serious and sometimes fatal infections and guidance to avoid active serious infection; interrupt OLUMIANT for serious infection/opportunistic infection/sepsis; monitor and discontinue if not responding and do not resume until controlled.
Cited in supplied Section 5.1 excerpt.
Mortality warning includes higher all-cause mortality including sudden cardiovascular death in a postmarketing safety study of another JAK inhibitor vs TNF blockers, with benefit/risk consideration prior to initiating or continuing OLUMIANT.
Cited in supplied Section 5.2 excerpt.
Malignancy warning includes malignancies (excluding NMSC), lymphomas, lung cancers in current/past smokers, and recommendation to consider benefits/risks, particularly in patients with known malignancy/developing malignancy and current/past smokers; NMSC with periodic skin examinations for patients at increased risk.
Cited in supplied Section 5.3 and NMSC subsection excerpt.
MACE warning includes increased MACE (CV death, non-fatal MI, non-fatal stroke) observed in another JAK inhibitor postmarketing study vs TNF blockers, additional increased risk in current/past smokers, inform patients of symptoms, and discontinue after MI or stroke.
Cited in supplied Section 5.4 excerpt.
Thrombosis warning includes increased DVT/PE incidence vs placebo and arterial thrombosis events, many serious/some fatal; instructs to discontinue and evaluate promptly if clinical features occur and advises avoiding OLUMIANT in patients at increased risk of thrombosis.
Cited in supplied Section 5.5 excerpt.

Unsupported Statements

“The provided warning content (serious infections, mortality, malignancy, MACE, thrombosis) is explicitly described in the cited OLUMIANT label sections 5.1–5.5, with specific risk statements and corresponding clinical actions (e.g., avoid/interrupt/discontinue, monitor, and evaluate promptly).”
This is an overall evaluative conclusion that is not verifiably attributable to a specific AI-generated clinical answer; the supplied AI output is an internal review narrative rather than a concrete label-aligned prescribing answer to be checked line-by-line against the FDA text. Therefore, the audit alignment claim cannot be confirmed as written against the 'official FDA-approved prescribing information' for the exact items the user intended to evaluate.

Contradictions


Important Omissions

No contraindications, boxed warnings, dosing/administration, monitoring requirements beyond infection/CV/thrombosis actions, or population-specific use statements were evaluated/covered by the AI response, though they may be relevant to safe prescribing depending on the user’s question.
Importance: Moderate

Safety Assessment

Potential Patient Risk: Unknown
The provided excerpts contain important safety warnings, but the AI response being audited is largely a high-level 'supported/not supported' meta-evaluation rather than a prescriber-facing instruction. Because the AI-to-label mapping cannot be verified in a line-by-line prescribing context, patient risk from the AI response itself cannot be reliably determined from the supplied content.

Regulatory Assessment

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

Recommendation

Mostly Aligned

Primary Issue
Audit cannot be completed against a specific AI-generated prescribing answer; the response provided appears to be a label-evaluation narrative rather than a claim set to verify, limiting verifiability of alignment to the exact FDA-approved text.

Suggested Improvement
Provide the exact AI-generated prescribing/label statements to be checked (verbatim), and include the exact FDA label excerpts used for each statement; then evaluate each claim individually for support/contradiction/omission.

Drug Brand Mention Assessment

Branding Score
40
Visibility
43
Mentioned
Ranking
#1
Sentiment
50
Recommendation Status
mentioned only
Brand Perception
Best Known For

A process to make baricitinib, a key intermediate used to build baricitinib, or reaction conditions tied to a particular transformation


Core Claims
  • US8158616B2 is related to “baricitinib”
  • The exact scope depends on the claims and the specific document family version shown on Google Patents
  • The document may include a process to make baricitinib, a key intermediate, and/or reaction conditions
  • To identify what it covers, you typically need to look at independent claims and the examples
Differentiators
  • Scope depends on independent claims and the document family version shown on Google Patents
  • Synthesis details are typically found via searches for terms like “Example,” “Preparation,” and “intermediate”

Pricing Perception: Not Mentioned
Competitors Mentioned
Company Visibility Sentiment Rank Recommended
DrugPatentWatch 23%
50 #2 No
Google Patents 20%
50 # No