OOIR: Observatory of International Research

Papers

(The H4-Index of Phytochemistry is 32. 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 2021-10-01 to 2025-10-01.)

Article	Citations
Chevalierlin: A spirocyclic alkaloid from a hydrothermal vent associated fungus Aspergillus chevalieri TW132-65	207
Isolation of undescribed cladosporols and spirobisnaphthalenes from a plant pathogen Cladosporium cladosporioides F-10-2-A	139
Sesquiterpenes from Carpesium faberi triggered ROS-induced apoptosis and protective autophagy in hepatocellular carcinoma cells	137
Antioxidant micropeptins from a Microcoleus autumnalis-dominated benthic cyanobacterial mat from Western Ireland	82
Artemordosins A−L, cadinane-monoterpene heterodimers and sesquiterpenoids with antihepatoma activity from Artemisia ordosica	75
Diterpenoid alkaloids from Delphinium trichophorum	73
Efficient NMR spectroscopy approach for the determination of the relative configuration of Δ5,6Δ11,12-jatrophane diterpenes and their chemotherapy sensitization activities	73
Functional characterization of a small gene family coding for putrescine hydroxycinnamoyltransferases, involved in phenolamide accumulation, in tomato	56
Steroidal saponins from the bulbs of Lilium lancifolium Thunb. and their antioxidant effects	50
Cytotoxic monoterpenoid indole alkaloids from Tabernaemontana bovina	49
A systematic review of spirostanol saponins and anticancer natural products isolated from Tacca plantaginea (Hance) Drenth	48
Vitislactone, a non-canonical strigolactone exudated by grapevine rootstocks in response to nitrogen starvation	48
Chermesins I-N: Bioactive spiromeroterpenoids from the marine-sourced fungus Penicillium chermesinum AS-400	46
Six C21 steroidal glycosides from Cynanchum wallichii Wight roots and their multidrug resistance reversal activities	45
Bioactive constituents from the leaves of Metapanax delavayi with anti-benign prostatic hyperplasia activities	43
Seasonal variation of phenolic compounds in Zostera marina (Zosteraceae) from the Baltic Sea	42
Graphical Contents List	41
Molecular differentiation of Panax notoginseng grown under different conditions by internal extractive electrospray ionization mass spectrometry and multivariate analysis	41
Steroidal alkaloids from Solanum nigrum and their cytotoxic activities	41
Organ-specific volatiles from Sonoran desert Krameria flowers as potential signals for oil-collecting bees	40
Editorial Board/Publication Information	39
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	39
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	38
Chromones from the endophytic fungus Bipolaris eleusines	36
Editorial Board/Publication Information	35

Secotrijugins A−D, four highly oxidized and rearranged limonoids from Trichilia sinensis and their anti-inflammatory activity	35
Dimeric diarylheptanoids with anti-inflammatory activity from Zingiber officinale	35
Metabolic fingerprinting of Ganoderma spp. using UHPLC-ESI-QTOF-MS and its chemometric analysis	35
Eugenilones A−N: sesquiterpenoids from the fruits of Eugenia uniflora	34
Metabolic adaptation of diatoms to hypersalinity	33
Cannabinoid-like meroterpenoids from Peperomia incana	32
Penigrines A−E: Five undescribed azepine-indole alkaloids from Penicillium griseofulvum	32
Phenolic chemistry of the seagrass Zostera marina Linnaeus: First assessment of geographic variability among populations on a broad spatial scale	32
Triterpenoids with multi-skeletons as 11 β -HSD1 inhibitors from Euphorbia sikkimensis	32