OOIR: Observatory of International Research

Papers

(The H4-Index of Journal of Natural Products is 28. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-11-01 to 2025-11-01.)

Article	Citations
Probing the Cytotoxic Signaling Induced by Eupenifeldin in Ovarian Cancer Models	107
Efficient Production of Flavonoid Glucuronides in Escherichia coli Using Flavonoid O-Glucuronosyltransferases Characterized from Marchantia polymorpha	73
Bioactive Cyclodepsipeptides from Cocultured Mangrove-Derived Aspergillus sp. and Penicillium sp.	50
Platanosides, a Potential Botanical Drug Combination, Decrease Liver Injury Caused by Acetaminophen Overdose in Mice	47
The Significance of Hypervariability and Conserved Motifs in Antimicrobial Peptides from Tree Frogs	44
Drymariamides A–J, Antiadipogenic Cyclopeptides Incorporating Noncanonical Amino Acids from Drymaria cordata	38
Aspulvins A–H, Aspulvinone Analogues with SARS-CoV-2 M^pro Inhibitory and Anti-inflammatory Activities from an Endophytic Cladosporium sp.	38
Isolation and Biological Activity of 9-epiTetrodotoxin and Isolation of Tb-242B, Possible Biosynthetic Shunt Products of Tetrodotoxin from Pufferfish	37
Diterpenoids from Sauropus spatulifolius Leaves with Antimicrobial Activities	37
Discovery and Biosynthesis of Glycosylated Cycloheximide from a Millipede-Associated Actinomycete	35
Issue Publication Information	35
Ouhanamide, an Antiparasitic Linear Lipopeptide from a Marine Okeania sp. Cyanobacterium	33
Modified Podophyllotoxin Phenoxyacetamide Phenylacetate Derivatives: Tubulin/AKT1 Dual-Targeting and Potential Anticancer Agents for Human NSCLC	33
Peniandranoids A–E: Meroterpenoids with Antiviral and Immunosuppressive Activity from a Penicillium sp.	33
Discovery of Chalcone Derivatives as Bifunctional Molecules with Anti-SARS-CoV-2 and Anti-inflammatory Activities	32
Insights into the Biosynthesis of Kibdelomycin and Amycolamicin from Comparative Biosynthetic Gene Cluster Analysis and Precursor Incorporation Studies	31
Correction to “The Berkeleylactones, Antibiotic Macrolides from Fungal Coculture”	31
Reconsideration of the Structures of Stemara-13(14)-en-18-ol and Related Diterpene Natural Products: Vinylic Hydrogen Chemical Shifts Are Key	31
Triquinane Sesquiterpene Glycosides from the Basidiomycete Antrodiella zonata	30
Proteomic Changes in Methicillin-Resistant Staphylococcus aureus Exposed to Cannabinoids	30
Phenylhydrazone Alkaloids from the Deep-Sea Cold Seep Derived Fungus Talaromyces amestolkiae HDN21-0307	30
Biochemical and Structural Studies of the Carminomycin 4-O-Methyltransferase DnrK	30
Cyclotides Chemosensitize Glioblastoma Cells to Temozolomide	30
(±)-Polysiphenol and Other Analogues via Symmetrical Intermolecular Dimerizations: A Synthetic, Spectroscopic, Structural, and Computational Study	28
Enigmazole C: A Cytotoxic Macrocyclic Lactone and Its Ring-Opened Derivatives from a New Species of Homophymia Sponge	28

Laeviganoids A–T, ent-Clerodane-Type Diterpenoids from Croton laevigatus	28
Zelkovamycins F and G, Cyclopeptides with Cα-Methyl-threonine Residues, from an Endophytic Kitasatospora sp.	28
Palladium-Catalyzed Direct Synthesis and Insecticidal Activity of Arylmatrine Derivatives	28