IRIS
Pietra, Francesco
 Distribuzione geografica
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Continente #
NA - Nord America 7.106
EU - Europa 1.644
AS - Asia 398
AF - Africa 9
OC - Oceania 9
SA - Sud America 3
Continente sconosciuto - Info sul continente non disponibili 1
Totale 9.170
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Nazione #
US - Stati Uniti d'America 7.078
UA - Ucraina 578
SE - Svezia 346
FI - Finlandia 225
CN - Cina 219
BG - Bulgaria 125
SG - Singapore 114
GB - Regno Unito 113
IT - Italia 86
DE - Germania 81
FR - Francia 41
CA - Canada 21
JO - Giordania 20
RU - Federazione Russa 13
IN - India 9
TR - Turchia 9
ES - Italia 8
NL - Olanda 8
IL - Israele 7
MX - Messico 7
AU - Australia 5
CI - Costa d'Avorio 4
JP - Giappone 4
NZ - Nuova Zelanda 4
ZW - Zimbabwe 4
GR - Grecia 3
ID - Indonesia 3
PT - Portogallo 3
RO - Romania 3
TH - Thailandia 3
BR - Brasile 2
CZ - Repubblica Ceca 2
IE - Irlanda 2
PH - Filippine 2
PK - Pakistan 2
PL - Polonia 2
SK - Slovacchia (Repubblica Slovacca) 2
TW - Taiwan 2
VN - Vietnam 2
AR - Argentina 1
AT - Austria 1
DZ - Algeria 1
EU - Europa 1
HU - Ungheria 1
IR - Iran 1
IS - Islanda 1
KR - Corea 1
Totale 9.170
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Città #
Jacksonville 1.263
Chandler 884
Fairfield 799
Ashburn 446
Woodbridge 406
Wilmington 328
Seattle 326
Princeton 307
San Mateo 280
Houston 255
Cambridge 253
Ann Arbor 222
Sofia 122
Dearborn 120
New York 113
Boardman 111
Beijing 90
Singapore 75
Helsinki 56
San Diego 42
Lawrence 32
London 27
Düsseldorf 26
Norwalk 26
Bremen 24
Hefei 23
Falls Church 19
Fremont 19
Andover 17
Des Moines 14
Nanjing 14
Verona 14
Toronto 12
Kunming 11
San Paolo di Civitate 11
Guangzhou 9
Izmir 9
Jinan 9
Old Bridge 9
Shanghai 9
Costa Mesa 7
Madrid 7
Kilburn 6
Shenyang 6
Altamura 5
Paris 5
Redwood City 5
Abidjan 4
Acton 4
Bologna 4
Cuauhtémoc 4
Frankfurt am Main 4
Fuzhou 4
Harare 4
Hebei 4
Los Angeles 4
Magenta 4
Milan 4
Nanchang 4
San Jose 4
Chiswick 3
Clearwater 3
Gallarate 3
Hobart 3
Hounslow 3
Munich 3
Negrar 3
Ottawa 3
Phoenix 3
Plovdiv 3
Redmond 3
Southwark 3
Tokyo 3
Xian 3
Atrani 2
Banyuls de la Marenda 2
Baotou 2
Bratislava 2
Brooklyn 2
Chengdu 2
Delhi 2
Dublin 2
Edinburgh 2
Falkenstein 2
Hanoi 2
Hyderabad 2
Lanzhou 2
Lisbon 2
Livorno 2
Manerbio 2
Mexico 2
Mountain View 2
Nanning 2
Padova 2
Pittsburgh 2
Prague 2
Prescot 2
Rimini 2
Saint Louis 2
Saint-brieuc 2
Totale 7.019
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Nome #
Hanishin, a semiracemic, bioactive C9 alkaloid of the axinellid sponge Acanthella carteri from the Hanish Islands. A shunt metabolite? 122
7-Bromocavernicolenone, a New a-Bromoenone from the Mediterranean Sponge Aplysina (=Verongia) cavernicola. Implied, Unprecedented Involvement of a Halogenated Dopa in the Biogenesis of a Natural Product 99
A Novel, Degraded Polyketidic Lactone, Leptosphaerolide, and Its Likely Diketone Precursor, Leptosphaerodione. Isolation from Cultures of the Marine Ascomycete Leptosphaeria oraemaris (LINDER) 99
Arboxeniolide-1, a New, Naturally Occurring Xeniolide Diterpenoid from the Gorgonian Paragorgia arborea of the Crozet Is. (S. Indian Ocean) 98
Dictyotetraene, a New Diterpenoid from a Dictyota sp. (Chromophycota, Dictyotaceae) of the North Brittany Sea 98
Agelastatin A, a New-Skeleton Cytotoxic Alkaloid of Oroidin Family. Isolation from the Axinellid Sponge Agelas dendromorpha of Coral Sea 96
Some Peculiar Cases of 7-Telesubstitution by Anionic Phosphorus Nucleophiles on 2-Halotropones 95
(+)-Coralloidin-A and (-)-Coralloidin-B, Two New Sesquiterpenoids from the Mediterranean Alcyonacean Alcyonium coralloides 93
Aztèquynol A, the first clearly defined, C-branched polyacetylene and the analogue Aztèquynol B. Isolation from the tropical marine sponge Petrosia sp 91
Bis-Allylic Reactivity of the Funicolides, 5,8(17)-Diunsaturated Briarane Diterpenes of the Sea Pen Funiculina quadrangularis from the Tuscan Archipelago, Leading to 16-Nortaxane Derivatives 91
Almazole D, a new type of antibacterial 2,5-disubstituted oxazolic dipeptide from a red alga of the coast of Senegal 89
Glutathione S-transferase catalysed dehalogenation of haloaromatic compounds which lack nitro groups near the reaction centre 89
Glycerol Enol Ethers of the Brachiopod Gryphus vitreus from the Tuscan Archipelago 87
Bretonin A and isobretonin A, unique glycerol derivatives isolated from a demosponge of Brittany waters 86
A Novel Glyceryl Ester (Glyceryl Dendryphiellate A), a Trinor-eremophilane (Dendryphiellin A1), and Eremophilanes (Dendryphiellin E1 and E2) from the Marine Deuteromycete Dendryphiella salina (SUTHERLAND) PUGH et NICOT 86
A Screening of Some Colonial Ascidiacea of Banyuls-sur-Mer for Antibacterial and Antifungal Activities and, Preliminarily, for Natural Products: 2'-Deoxyribonucleosides from Trididemnum cereum (Giard, 1872) 86
A Butenolide Atypical of The Ranunculaceae: Aquilegiolide from Aquilegia atrata (Var. Atroviolacea) 86
Coralloidolide F, the First Example of a 2,6-Cyclized Cembranolide: Isolation from the Mediterranean Alcyonacean Coral Alcyonium coralloides 85
A New, Unexpected Marine Source of a Molting Hormone. Isolation of Ecdysterone in Large Amounts from the Zoanthid Gerardia savaglia 85
Antipodal pathways to secondary metabolites in the same eukaryotic organism 84
Corallistin A, a Second Example of a Free Porphyrin from a Living Organism. Isolation from the Demosponge Corallistes sp. of the Coral See and Inhibition of Abnormal Cells 83
(+)-Raspailyne-A, a novel, acid-sensitive acetylenic enol ether glyceride from the marine sponge Raspailia pumila 83
Synthesis of the Alleged Natural Monoterpenoid a-Santolinenone 82
On the absolute configuration of penlanfuran and related sesquiterpenoids of the sponge Dysidea fragilis from the North-Brittany sea 79
Isolation of ergosta-4,24(28)-dien-9-one from both Astrophorida demosponges and subantarctic hexactinellides 79
Oceanapins A-F, unique branched ceramides isolated from the Haplosclerid sponge Oceanapia cf. tenuis of the Coral Sea 77
On the First Marine Natural Product Having Low Enantiomeric Purity 77
New Furano-Sesquiterpenoids from Mediterranean Sponges 77
Rarisetenolide, epoxyrarisetenolide and epirarisetenolide, new skeleton sesquiterpene lactones as taxonomic markers and defensive agents of the marine ciliated morphospecies Euplotes rariseta 76
Twelve membered O-bridged, cyclic ethers of red seaweeds in the genus Laurencia exist in solution as slowly interconverting conformers 76
Preliminary survey of toxicity of the green alga Caulerpa taxifolia introduced into the Mediterranean 75
New Functionalized Cycloheptatrienes via Tropone s-Adducts 75
On the absolute configuration of penlanfuran and related sesquiterpenoids of the sponge Dysidea fragilis from the North-Brittany sea 75
Novel Cembranolides (Coralloidolide D and E) and a 3,7-Cyclized Cembranolide (Coralloidolide C) from the Mediterranean Coral Alcyonium coralloides 75
Slowly Interconverting Conformers of the Briarane Diterpenoids Verecynarmin-B, -C, and-D Isolated from the Nudibranch Mollusc Armina maculata and the Pennatulacean Octocoral Veretillum cynomorium of the East Pyrenean Waters 75
Isolation of the Cembranoid Preverecynarmin Alongside Some Briaranes, the Verecynarmins, from Both the Nudibranch Mollusc Armina maculata and the Octocoral Veretillum cynomorium of the East Pyrenean Mediterranean Sea 74
Novel 10-Hydroxydocosapolyenoic Acids from Deep-Water Scleractinian Corals 74
Isolation, in large Amounts, of the Rare Plant Ecdysteroid Ajugasterone-C from the Mediterranean Zoanthid Gerardia savaglia 73
Leiopathic Acid, a Novel Optically Active Hydroxydocosapentaenoic Acid, and Related Compounds, from the Black Coral Leiopathes sp. of Saint Paul Island (S. Indian Ocean) 73
The Active Centres of Agelastatin A, a Strongly Cytotoxic Alkaloid of the Coral Sea Axinellid Sponge Agelas dendromorpha, as Determined by Comparative Bioassays with Semisynthetic Derivatives 73
Konakhin, a novel type of degraded sesterterpene. Isolation from a marine sponge of Senegal 72
Synthesis of the bretonins, polyolefinic esterified glyceryl ethers of an unidentified sponge from the north- Brittany sea:absolute configuration and novel structure assignment 72
Stereochemical features of sesquiterpene metabolites as a distinctive trait of red seaweeds in the genus Laurencia 71
Antimicrobial Activities from Marine Fungi 71
Isolation of Toxic and Potentially Toxic Sesqui- and Monoterpenes from the Tropical Green Seaweed Caulerpa taxifolia Which Has Invaded the Region of Cap Martin and Monaco 71
Configuration, conformation and reactivity of highly functionalized eunicellane diterpenes isolated from the gorgonians Eunicella cavolinii and Eunicella singularis from Marseille 70
On the First Marine Stigmastane Sterols and Sterones Having a 24,25-Double Bond. Isolation from the Sponge Stelletta sp. of the Deep Coral Sea 70
Cytotoxins, Mycotoxins and Drugs from a New Deuteromycete, Acremonium neo-caledoniae, from the Southwestern Lagoon of New Caledonia 70
Gerardiasterone, a New Ecdysteroid with a 20,22,23,25-Tetrahydroxylated Side Chain from the Mediterranean Zoanthid Gerardia savaglia 69
From Epiraikovenal, an Instrumental Niche-Exploitation Sesquiterpenoid of Some Strains of the Marine Ciliated Protist Euplotes raikovi, to an Unusual Intramolecular tele Dienone-Olefin [2+2] Photocycloaddition 69
Metabolites with a Novel C30 backbone from marine ciliates 69
C15 Acetogenins and terpenes of the dictyoceratid sponge Spongia zimocca of il Rogiolo: a case of seaweed-metabolite transfer to, and elaboration within a sponge? 68
Sphinxolide, a 26-membered antitumoral macrolide isolated from an unidentified Pacific nudibranch 68
Pteridines, Sterols, and Indole Derivatives from the Lithistid Sponge Corallistes undulatus of the Coral Sea 67
Aplysinopsin-type alkaloids from Dendrophyllia sp., a scleractinian coral of the family Dendrophylliidae of the Philippines. Facile photochemical Z/E photoisomerization and thermal reversal 66
Hydroxyicosatetraenoic, Hydroxyicosapentaenoic, Hydroxydocosapentaenoic, and Hydroxydocosahexaenoic Acids from the Sponge Echinochalina mollis of the Coral Sea 66
Novel Trinor-eremophilanes (Dendryphiellin B, C, and D), Eremophilanes (Dendryphiellin E, F, and G), and Branched C9-Carboxylic Acids (Dendryphiellic Acid A and B) from the Marine Deuteromycete Dendryphiella salina (Sutherland) Pugh et Nicot 65
New 1,2,3,4-tetrahydropyrrolo[1,2-a]pyrimidinium alkaloids(phloeodictynes) from the New Caledonian shallow-waterhaplosclerid sponge Oceanapia fistulosa. Structural elucidationfrom mainly LC-tandem-MS-soft-ionization techniques anddiscovery of antiplasmodial activity 65
Coralloidin C, D, and E: Novel Eudesmane Sesquiterpenoids from the Mediterranean Alcyonacean Alcyonium coralloides 65
Leucascandrolide A, a New Type of Macrolide: the First Powerfully Bioactive Metabolite of Calcareous Sponges (Leucascandra caveolata, a New Genus from the Coral Sea) 65
A novel type of a second epoxy bridge in eunicellane diterpenes: isolation and 65
Nuovi terpenoidi da ciliati marini del genere Euplotes : Chimica e Biologia a confronto 63
Caratteristiche strutturali e possibili applicazioni di complessi delle euplotine con beta-ciclodestrine 62
Adriadysolide, the First Monoterpenoid Isolated from a Marine Sponge 59
Relative Contributions to Antitumoral Activity of Lipophilic vs. Polar Reactive Moieties in Marine Terpenoids 59
Cavernicolin-1 and Cavernicolin-2, Two Epimeric Dibromolactams from The Mediterranean Sponge Aplysina (Verongia) cavernicola 58
2'-Deoxynucleoside Uronic Acids from the Ascidian Aplidium (=Amarocium) fuscum (Drasche, 1883) 58
Novel aplysinopsin-type compounds from scleractinian corals of the family Dendrophyllidae of the Mediterraneanand the Philippines. Configurational-assignment criteria, stereospecific synthesis, and photoisomerization 56
A synthesis of (S)-(+)-cryptone 56
Almazole A and almazole B, unusual marine alkaloids isolated from an unidentified red seaweed from the coasts of Senegal 56
Selective INEPT Experiments on XL-Series Spectrometers 53
AlmazoleC, a new indole alkaloid bearing an unusually 2,5-disubstituted oxazole moiety, and its putative biogenetic peptidic precursor , from a Senegalese delesseriacean seaweed 53
A Photochemical Route to 4-Alkytropones including Nezukone 52
Sarcodictyenone, a Ring-Reduced, Optically Active Linear Tetraprenylquinone from the Mediterranean Stolonifer Sarcodictyon roseum (= Rolandia rosea) 52
On the Stereochemisty of Grignard Addition to Bicyclo[3.3.1]nonan-2-one. Preferential Axial Attack on a Cyclohexanone System by a Bulky Nucleophile 51
Sarcodictyn A and Sarcodictyn B, Novel Diterpenoidic Alcohols Esterified by (E)-N(1)-Methylurocanic Acid. Isolation from the Mediterranean Stolonifer Sarcodictyon roseum 51
Rogiolol-acetate : a new halogenated chamigrane from the sponge Spongia zimocca. An interesting case of dynamic process investigated by NMR lineshape analysis 50
Reaction of Tropone with 2-Mercaptoethanol: 1,2-Difunctionalization of Cycloheptatrienenes with Oxygen and Sulphur in a Fused Ring 49
High Solvolytic Reactivity And Conformational Bias in New Obtusallenes,A Rare Family of C15 Macrocyclic Ethers 48
Hanishenols A-B, novel linear or methyl-branched glycerol enol ethers of the Axinellid Sponge Acanthella Carteri (= Acanthella aurantiaca) from the Hanish Islands, Red Sea' 47
Penlanfuran, a new furanoid sesquiterpene from the marine sponge Dysidea fragilis (Mont.) of Brittany. A striking difference with the same Hawaiian species. 47
Suberein, a novel dimeric styryl sulfate from the verongid sponge Suberea creba from New Caledonia 47
On the unusual propensity by the red seaweed Laurencia microcladia of Il Rogiolo to form C15 oxepanes: isolation of rogioloxepane A,B, C and their likely biogenetic acyclic precursor, prerogioloxepane 47
Nuovi macrolidi da un nudibranco dell'Oceano Pacifico 47
Conformational Preferences and Absolute Configuration of Agelastatin A, a Cytotoxic Alkaloid of the Axinellid Sponge Agelas dendromorpha from the Coral Sea, via Combined Molecular modelling, NMR and Exciton Splitting for Diamides and Hydroxyamide Derivati 47
Calenzanol, the first member of a new class of sesquiterpene with a novel skeleton from the red seaweed Laurencia microcladia from the Bay of Calenzana, Elba Island 46
Conformational Studies, from temperature-dependent NMR specta, of marine polyalogenated chamigranes 46
Leucascandrolide B, a new 16-membered, extensively methyl branched polyhalogenated macrolide from the calcareous sponge Leucascandra caveolata from northeastern waters of New Caledonia 46
Verecynamin A, a Novel Briarane Diterpenoid Isolated from Both the Mediterranean Nudibranch Mollusc Armina maculata and its Prey, the Pennatulacean Octocoral Veretillum cynomorium 45
Novel Naamidine-Type Alkaloids and Mixed-Ligand Zn++ Complexes of a Calcareous Sponge, Leucetta sp., from the Coral Sea 45
Coralloidolide A and Coralloidolide B, the First Cembranoids from Mediterranean Organisms, the Alcyonacean Alcyonium coralloides 44
Nuovi Composti Poliarsenicali Attivi da una Spugna Poecilosclerida Tropicale 44
Epinardins A-C, New Pyrroloiminoquinone Alkaloids of Undetermined Deep-Water Green Demosponges from Pre-Antarctic Indian Ocean 44
Polar metabolites of the tropical green seaweed Caulerpa taxifolia which is spreading in the Mediterranean Sea. Glycoglycerolipids and stable enols (alpha-keto esters) 44
Hemifistularin 3: a degraded peptide or biogenetic precursor? Isolation from a sponge of the order Verongida of the Coral Sea or generation from base tratment of 11-oxofistularin-3 43
Characterization of Anticholinesterase-active 3-alkylpyridinium polymers from the marine sponge Reniera sarai in aqueous solutions 43
Una serie di ceramidi, nuove per ramificazione a entrambe le catene , isolate dalla spugna Oceanapia cf. tenuis 43
Caulerpenyne-Amine Reacting System as a Model for in vivo Interactions of Ecotoxicologically Relevant Sesquiterpenoids of the Mediterranean-Adapted Tropical Green Seaweed Caulerpa taxifolia 43
Secondary Metabolites of the Green Seaweed Caulerpa taxifolia Introduced into the Mediterranean Sea, and a Comparison with Ciliates of the Genus Euplotes 43
Antibacterial and anticholinesterase activities of aplysamine-4, a bromotyrosine-derived metabolite of a Red Sea marine sponge 43
Totale 6.740
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Categoria #
all - tutte 38.511
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 304
selected - selezionate 0
volume - volumi 0
Totale 38.815
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2019/20202.158 117 59 193 170 281 196 363 157 273 88 56 205
2020/20211.629 55 249 70 223 142 118 190 56 183 52 226 65
2021/20221.458 27 233 3 102 57 28 72 384 49 115 93 295
2022/20231.865 299 122 3 236 339 302 0 127 264 24 111 38
2023/2024625 60 75 28 15 55 140 27 80 11 12 12 110
2024/20255 5 0 0 0 0 0 0 0 0 0 0 0
Totale 9.212