OOIR: Observatory of International Research

Papers

(The H4-Index of Phytochemistry is 30. 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
Isolation of undescribed cladosporols and spirobisnaphthalenes from a plant pathogen Cladosporium cladosporioides F-10-2-A	145
Chevalierlin: A spirocyclic alkaloid from a hydrothermal vent associated fungus Aspergillus chevalieri TW132-65	83
Antioxidant micropeptins from a Microcoleus autumnalis-dominated benthic cyanobacterial mat from Western Ireland	77
Chromones from Saposhnikovia divaricata and their inhibition of IL-1β-induced proliferative activity in SW982 cells	74
Artemordosins A−L, cadinane-monoterpene heterodimers and sesquiterpenoids with antihepatoma activity from Artemisia ordosica	58
Sesquiterpenes from Carpesium faberi triggered ROS-induced apoptosis and protective autophagy in hepatocellular carcinoma cells	51
Chromones from the endophytic fungus Bipolaris eleusines	50
Functional characterization of a small gene family coding for putrescine hydroxycinnamoyltransferases, involved in phenolamide accumulation, in tomato	48
A systematic review of spirostanol saponins and anticancer natural products isolated from Tacca plantaginea (Hance) Drenth	48
Bioactive constituents from the leaves of Metapanax delavayi with anti-benign prostatic hyperplasia activities	48
Vitislactone, a non-canonical strigolactone exudated by grapevine rootstocks in response to nitrogen starvation	45
Molecular differentiation of Panax notoginseng grown under different conditions by internal extractive electrospray ionization mass spectrometry and multivariate analysis	44
Chermesins I-N: Bioactive spiromeroterpenoids from the marine-sourced fungus Penicillium chermesinum AS-400	42
Callnudoids A–H: Highly modified labdane diterpenoids with anti-inflammation from the leaves of Callicarpa nudiflora	41
Six C21 steroidal glycosides from Cynanchum wallichii Wight roots and their multidrug resistance reversal activities	41
Phenolic chemistry of the seagrass Zostera marina Linnaeus: First assessment of geographic variability among populations on a broad spatial scale	40
Penigrines A−E: Five undescribed azepine-indole alkaloids from Penicillium griseofulvum	40
Cannabinoid-like meroterpenoids from Peperomia incana	39
Characteristic chromanone acids from Calophyllum membranaceum: Determination of C-3 configuration and anti-inflammatory activity	37
Triterpenoids with multi-skeletons as 11 β -HSD1 inhibitors from Euphorbia sikkimensis	37
Organ-specific volatiles from Sonoran desert Krameria flowers as potential signals for oil-collecting bees	36
Steroidal alkaloids from Solanum nigrum and their cytotoxic activities	36
Graphical Contents List	36
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	35
Dimeric diarylheptanoids with anti-inflammatory activity from Zingiber officinale	35

Secotrijugins A−D, four highly oxidized and rearranged limonoids from Trichilia sinensis and their anti-inflammatory activity	35
Editorial Board/Publication Information	35
Editorial Board/Publication Information	35
Eugenilones A−N: sesquiterpenoids from the fruits of Eugenia uniflora	32
Rosmarinic acid and hesperidin regulate gas exchange, chlorophyll fluorescence, antioxidant system and the fatty acid biosynthesis-related gene expression in Arabidopsis thaliana under heat stress	31
Seasonal variation of phenolic compounds in Zostera marina (Zosteraceae) from the Baltic Sea	30
Steroidal saponins from the bulbs of Lilium lancifolium Thunb. and their antioxidant effects	30
Cytotoxic monoterpenoid indole alkaloids from Tabernaemontana bovina	30
Antibacterial activity and mechanism of polyketides from the marine-derived fungus Talaromyces sp.	30