Thiosemicarbazates and Uses Thereof
Summary
The USPTO granted patent US12595233B2 to The Feinstein Institutes for Medical Research on April 7, 2026. The patent covers thiosemicarbazates, thiocarbazates, semithiocarbazates, peptides, aza-amino acid conjugates, and azapeptides, along with methods for their synthesis and applications in drug discovery, diagnosis, inhibition, prevention, and treatment of diseases. The patent names Yousef Al-Abed and Ahmad Altiti as inventors.
What changed
The USPTO granted patent US12595233B2 covering thiosemicarbazates, thiocarbazates, semithiocarbazates, and related compounds, along with chemoselective functionalization protocols using Mitsunobu reaction for site-specific nitrogen alkylation. The patent also covers methods for preparing ureases, carbazides, semicarbazides, beta-peptides, azapeptides, and uses in drug discovery and disease treatment. The filing date was June 3, 2022, with application number 17831504 and 21 claims.
This is a routine patent grant notification with no compliance obligations or deadlines. Pharmaceutical companies and researchers interested in peptidomimetics, azapeptides, or thiosemicarbazone chemistry should review the patent claims to assess potential licensing needs or freedom-to-operate concerns for drug development programs in this chemical space.
Archived snapshot
Apr 7, 2026GovPing 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.
Thiosemicarbazates and uses thereof
Grant US12595233B2 Kind: B2 Apr 07, 2026
Assignee
THE FEINSTEIN INSTITUTES FOR MEDICAL RESEARCH
Inventors
Yousef Al-Abed, Ahmad Altiti
Abstract
Thioesters, thiocarbamates, thiocarbazates, semithiocarbazates, peptides, aza-amino acid conjugates, and azapeptides; and a chemoselective and site-specific functionalization protocol of protected thiocarbazates and semithiocarbazates are described. The protocol features the use of Mitsunobu reaction to alkylate specifically the nitrogen atom close to the acylthiol moiety with alcohols to produce protected mono-substituted thiocarbazates that can be stored for months, activated under mild conditions at low temperature using halonium reagents and integrated orthogonally to make substituted semicarbazides that can be used, e.g., as synthons in synthesis of aza-amino acid conjugates, azapeptides and other peptidomimetics. Methods for preparing and using ureases, carbazides, semicarbazides, beta-peptides, azapeptides, and other peptidomimetics and azapeptide conjugates, and uses of ureases, carbazides, semicarbazides, beta-peptides, azapeptides in drug discovery, diagnosis, inhibition, prevention and treatment of diseases are also described.
CPC Classifications
C07D 209/48 C07D 403/12
Filing Date
2022-06-03
Application No.
17831504
Claims
21
Named provisions
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