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 2021-09-01 to 2025-09-01.)

Article	Citations
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	199
Artemordosins A−L, cadinane-monoterpene heterodimers and sesquiterpenoids with antihepatoma activity from Artemisia ordosica	134
Chermesins I-N: Bioactive spiromeroterpenoids from the marine-sourced fungus Penicillium chermesinum AS-400	131
Chevalierlin: A spirocyclic alkaloid from a hydrothermal vent associated fungus Aspergillus chevalieri TW132-65	80
Density functional theory study on the coupling and reactions of diferuloylputrescine as a lignin monomer	74
Penigrines A−E: Five undescribed azepine-indole alkaloids from Penicillium griseofulvum	71
Characteristic chromanone acids from Calophyllum membranaceum: Determination of C-3 configuration and anti-inflammatory activity	68
Secotrijugins A−D, four highly oxidized and rearranged limonoids from Trichilia sinensis and their anti-inflammatory activity	54
Editorial Board/Publication Information	48
Genetic diversity and biochemical analysis of Capsicum annuum (Bell pepper) in response to root and basal rot disease, Phytophthora capsici	48
Graphical Contents List	46
Globunoids A−D, undescribed bichalconoid and biflavanoids with -glucosidase and -amylase inhibitory activities from stems	44
Editorial Board/Publication Information	44
Sesquiterpenes from Carpesium faberi triggered ROS-induced apoptosis and protective autophagy in hepatocellular carcinoma cells	42
Organ-specific volatiles from Sonoran desert Krameria flowers as potential signals for oil-collecting bees	42
Metabolic fingerprinting of Ganoderma spp. using UHPLC-ESI-QTOF-MS and its chemometric analysis	42
Cytotoxic monoterpenoid indole alkaloids from Tabernaemontana bovina	41
Six C21 steroidal glycosides from Cynanchum wallichii Wight roots and their multidrug resistance reversal activities	39
Steroidal alkaloids from Solanum nigrum and their cytotoxic activities	39
Eugenilones A−N: sesquiterpenoids from the fruits of Eugenia uniflora	38
Steroidal saponins from the bulbs of Lilium lancifolium Thunb. and their antioxidant effects	37
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	37
Chromones from the endophytic fungus Bipolaris eleusines	37
Isolation of undescribed cladosporols and spirobisnaphthalenes from a plant pathogen Cladosporium cladosporioides F-10-2-A	35
A systematic review of spirostanol saponins and anticancer natural products isolated from Tacca plantaginea (Hance) Drenth	34

Bioactive constituents from the leaves of Metapanax delavayi with anti-benign prostatic hyperplasia activities	34
Seasonal variation of phenolic compounds in Zostera marina (Zosteraceae) from the Baltic Sea	34
Phenolic chemistry of the seagrass Zostera marina Linnaeus: First assessment of geographic variability among populations on a broad spatial scale	33
Dimeric diarylheptanoids with anti-inflammatory activity from Zingiber officinale	33
Chromones from Saposhnikovia divaricata and their inhibition of IL-1β-induced proliferative activity in SW982 cells	33
Integrative analysis of metabolome and transcriptome reveals the improvements of seed quality in vegetable soybean (Glycine max (L.) Merr.)	33
Diterpenoid alkaloids from Delphinium trichophorum	32