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 2021-05-01 to 2025-05-01.)

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	167
Diterpenoid alkaloids from Delphinium trichophorum	113
Chromones from Saposhnikovia divaricata and their inhibition of IL-1β-induced proliferative activity in SW982 cells	110
Artemordosins A−L, cadinane-monoterpene heterodimers and sesquiterpenoids with antihepatoma activity from Artemisia ordosica	73
Chermesins I-N: Bioactive spiromeroterpenoids from the marine-sourced fungus Penicillium chermesinum AS-400	67
Chevalierlin: A spirocyclic alkaloid from a hydrothermal vent associated fungus Aspergillus chevalieri TW132-65	64
Density functional theory study on the coupling and reactions of diferuloylputrescine as a lignin monomer	56
Organ-specific volatiles from Sonoran desert Krameria flowers as potential signals for oil-collecting bees	53
Antioxidant micropeptins from a Microcoleus autumnalis-dominated benthic cyanobacterial mat from Western Ireland	52
Characteristic chromanone acids from Calophyllum membranaceum: Determination of C-3 configuration and anti-inflammatory activity	45
Penigrines A−E: Five undescribed azepine-indole alkaloids from Penicillium griseofulvum	45
Functional characterization of a small gene family coding for putrescine hydroxycinnamoyltransferases, involved in phenolamide accumulation, in tomato	40
Isolation of undescribed cladosporols and spirobisnaphthalenes from a plant pathogen Cladosporium cladosporioides F-10-2-A	40
Callnudoids A–H: Highly modified labdane diterpenoids with anti-inflammation from the leaves of Callicarpa nudiflora	38
Secotrijugins A−D, four highly oxidized and rearranged limonoids from Trichilia sinensis and their anti-inflammatory activity	38
Cytotoxic monoterpenoid indole alkaloids from Tabernaemontana bovina	37
Editorial Board/Publication Information	37
Editorial Board/Publication Information	37
Graphical Contents List	37
Eugenilones A−N: sesquiterpenoids from the fruits of Eugenia uniflora	36
Functional characterization of acyltransferases from Salvia hispanica that can selectively catalyze the formation of trilinolenin	36
Genetic diversity and biochemical analysis of Capsicum annuum (Bell pepper) in response to root and basal rot disease, Phytophthora capsici	36
Globunoids A−D, undescribed bichalconoid and biflavanoids with -glucosidase and -amylase inhibitory activities from stems	36
Phenolic chemistry of the seagrass Zostera marina Linnaeus: First assessment of geographic variability among populations on a broad spatial scale	34
Cannabinoid-like meroterpenoids from Peperomia incana	34

Bioactive constituents from the leaves of Metapanax delavayi with anti-benign prostatic hyperplasia activities	33
Triterpenoids with multi-skeletons as 11 β -HSD1 inhibitors from Euphorbia sikkimensis	33
A systematic review of spirostanol saponins and anticancer natural products isolated from Tacca plantaginea (Hance) Drenth	32
Sesquiterpenes from Carpesium faberi triggered ROS-induced apoptosis and protective autophagy in hepatocellular carcinoma cells	31
Metabolic fingerprinting of Ganoderma spp. using UHPLC-ESI-QTOF-MS and its chemometric analysis	31
Dimeric diarylheptanoids with anti-inflammatory activity from Zingiber officinale	30
Integrative analysis of metabolome and transcriptome reveals the improvements of seed quality in vegetable soybean (Glycine max (L.) Merr.)	30
Chromones from the endophytic fungus Bipolaris eleusines	30
Vitislactone, a non-canonical strigolactone exudated by grapevine rootstocks in response to nitrogen starvation	30