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Thienamycin

(5R,6S)-3-(2-aminoethylsulfanyl)-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid · also: Thienpenem, Tienamycin, (+)-Thienamycin, Imipenem Impurity A, Imipenem EP Impurity A, 5-22-07-00446 (Beilstein Handbook Reference)

FormulaC11H16N2O4S
Mol. weight272.319
PubChem CID441128
InChIKeyWKDDRNSBRWANNC-ATRFCDNQSA-N
SMILESC[C@H]([C@@H]1[C@H]2CC(=C(N2C1=O)C(=O)O)SCCN)O
4,887Patents
81Research papers
192Patents - last 3 years
0Papers - last 3 years

Who owns the IP

The organizations most actively patenting around this compound, ranked by referenced patent volume.

#AssigneePatents
1Merck and Co Inc627
2Takeda Pharmaceutical Co Ltd404
3Sankyo Co Ltd148
4Eli Lilly and Co129
5Biora Therapeutics Inc70
6Takasago International Corp64
7Allergan Inc57
8Bristol Myers Co53
9Sumitomo Pharma Co Ltd49
10University of California, San Diego45

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This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.

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Where innovation is concentrated

Patent classifications ranked by volume reveal the technical domains with the most active filing.

#CodeAreaPatents
1A61PTherapeutic activity (drug indications)2,299
2C07DHeterocyclic compounds2,179
3A61KMedicinal preparations2,000
4Y02PClimate change mitigation: production728
5C07FOrganometallic compounds622
6C12NMicroorganisms, enzymes606
7C07CAcyclic and carbocyclic compounds358
8C07KPeptides345
9Y02AClimate change adaptation308
10C12PFermentation, enzyme processes304

AI mapped opportunity space

This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.

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Most-cited patents

Patents ranked by forward citations reveal the foundational inventions the field continues to build on.

TitleYearAssigneeCited by
Substituted N-methylene derivatives of thienamycin1980Merck and Co Inc88
Crystalline N-formimidoyl thienamycin1981Merck and Co Inc57
Thienamycin renal peptidase inhibitors1992Merck and Co Inc39
Process for the preparation of thienamycin and intermediates1980Merck and Co Inc33
Synthesis of thienamycin via trans-3-carboxymethylene-4-carboxy-5-methyl-Δ2 -isoxazoline1981Merck and Co Inc31

Where research is gaining momentum

Research themes ranked by publication activity show where scientific interest is accelerating around this compound.

#Research topicPapers
1Historical Medical Research and Treatments1
2Infections and bacterial resistance1
3Metalloenzymes and iron-sulfur proteins1

Who's driving the science

The most-published authors working with this compound, alongside their primary affiliations.

#AuthorAffiliationPapers
1Gloria BlancoUniversidad de Oviedo5
2Alfredo F. BrañaUniversidad de Oviedo4
3Byron H. ArisonMerck & Co., Inc., Rahway, NJ, USA (United States)4
4Craig A. TownsendJohns Hopkins University4
5Edward InamineMerck & Co., Inc., Rahway, NJ, USA (United States)4
6B. G. CHRISTENSENMerck & Co., Inc., Rahway, NJ, USA (United States)3
7Christopher J. SchofieldUniversity of Oxford3
8Cármen MéndezUniversidad de Oviedo3
9Jerrold M. LieschMerck & Co., Inc., Rahway, NJ, USA (United States)3
10Joanne M. WilliamsonMerck & Co., Inc., Rahway, NJ, USA (United States)3

Research leaders

This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.

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The literature that defines it

The most-cited papers anchoring the scientific record for this compound.

Frequently asked questions

Common questions about this compound's patent and research landscape, answered from the underlying data.

What is the molecular composition of Thienamycin?

Thienamycin has the molecular formula C11H16N2O4S with a molecular weight of 272.319. Its IUPAC name is (5R,6S)-3-(2-aminoethylsulfanyl)-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid, and it is also known by alternative names including Thienpenem and Tienamycin.

Which organizations hold the most patents related to Thienamycin?

Merck and Co Inc leads with 627 patents, followed by Takeda Pharmaceutical Co Ltd with 404 patents and Sankyo Co Ltd with 148 patents in the Thienamycin patent landscape.

What are the primary technical classifications for Thienamycin patents?

The most prevalent CPC subclasses are A61P (pharmaceutical preparations for specific therapeutic purposes, 2299 patents), C07D (heterocyclic compounds, 2179 patents), and A61K (preparations for medical purposes, 2000 patents).

What key research areas have been covered in Thienamycin literature?

Major research topics include Antibiotic Resistance in Bacteria and Microbial Natural Products and Biosynthesis. Notable papers cover metabolism of Thienamycin by renal dipeptidase, carbapenems as a new class of beta-lactam antibiotics, and biosynthesis by Streptomyces cattleya.

What are the primary inventors and institutions advancing Thienamycin research?

Leading authors include Gloria Blanco and Alfredo F. Braña from Universidad de Oviedo, Byron H. Arison and Edward Inamine from Merck & Co., Inc., and Craig A. Townsend from Johns Hopkins University, with research spanning synthesis, metabolism, and biosynthesis of the compound.

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