OOIR: Observatory of International Research

Papers

(The H4-Index of Phytochemistry is 29. 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 2022-08-01 to 2026-08-01.)

Article	Citations
Phenolic chemistry of the seagrass Zostera marina Linnaeus: First assessment of geographic variability among populations on a broad spatial scale	112
Four pairs of neolignan enantiomers with distinctive isochroman moiety from the fruits of Crataegus pinnatifida and their protective activities against H2O2-induced SH-SY5Y cells	65
Organ-specific volatiles from Sonoran desert Krameria flowers as potential signals for oil-collecting bees	65
Editorial Board/Publication Information	63
Editorial Board/Publication Information	56
Chevalierlin: A spirocyclic alkaloid from a hydrothermal vent associated fungus Aspergillus chevalieri TW132-65	55
Eight previously undescribed flavonoids and four previously undescribed bibenzyls from Macaranga kurzii and their potential antiviral activities	53
Chermesins I-N: Bioactive spiromeroterpenoids from the marine-sourced fungus Penicillium chermesinum AS-400	52
An updated comprehensive review on phytochemical Crinum L. genus alkaloids (2013–2025): Unlocking their anticancer potential	50
Secotrijugins A−D, four highly oxidized and rearranged limonoids from Trichilia sinensis and their anti-inflammatory activity	49
Antioxidant micropeptins from a Microcoleus autumnalis-dominated benthic cyanobacterial mat from Western Ireland	49
Isolation of undescribed cladosporols and spirobisnaphthalenes from a plant pathogen Cladosporium cladosporioides F-10-2-A	48
Penigrines A−E: Five undescribed azepine-indole alkaloids from Penicillium griseofulvum	46
Characteristic chromanone acids from Calophyllum membranaceum: Determination of C-3 configuration and anti-inflammatory activity	45
Iridoid glycosides and phenolic glycosides from Gentiana rhodantha and their anti-inflammatory activities	42
Chromones from Saposhnikovia divaricata and their inhibition of IL-1β-induced proliferative activity in SW982 cells	41
Cytotoxic monoterpenoid indole alkaloids from Tabernaemontana bovina	39
Metabolic adaptation of diatoms to hypersalinity	39
Anti-inflammatory polyketides from the endophytic fungus Cladosporium pseudocladosporioides A887	39
Chromones from the endophytic fungus Bipolaris eleusines	38
Sesquiterpenes from Carpesium faberi triggered ROS-induced apoptosis and protective autophagy in hepatocellular carcinoma cells	36
Dimeric diarylheptanoids with anti-inflammatory activity from Zingiber officinale	35
Clavatol derivatives from the endophytic fungus Penicillium commune XL-0473	35
Diterpenoid alkaloids from Delphinium trichophorum	34
Toddacoumalins A-J, ten undescribed coumarins from the roots of Toddalia asiatica	34

Oligosaccharide esters with neuroprotective activities isolated from the roots of Polygala tenuifolia Willd.	32
Artemordosins A−L, cadinane-monoterpene heterodimers and sesquiterpenoids with antihepatoma activity from Artemisia ordosica	30
Eugenilones A−N: sesquiterpenoids from the fruits of Eugenia uniflora	30
Integrative analysis of metabolome and transcriptome reveals the improvements of seed quality in vegetable soybean (Glycine max (L.) Merr.)	30
Functional characterization of a small gene family coding for putrescine hydroxycinnamoyltransferases, involved in phenolamide accumulation, in tomato	29
Steroidal alkaloids from Solanum nigrum and their cytotoxic activities	29
Efficient NMR spectroscopy approach for the determination of the relative configuration of Δ5,6Δ11,12-jatrophane diterpenes and their chemotherapy sensitization activities	29
A systematic review of spirostanol saponins and anticancer natural products isolated from Tacca plantaginea (Hance) Drenth	29