IRIS
Pietra, Francesco
 Distribuzione geografica
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Continente #
NA - Nord America 9.568
AS - Asia 3.610
EU - Europa 2.652
SA - Sud America 573
AF - Africa 65
OC - Oceania 13
Continente sconosciuto - Info sul continente non disponibili 2
Totale 16.483
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Nazione #
US - Stati Uniti d'America 9.476
SG - Singapore 1.656
CN - Cina 799
VN - Vietnam 671
UA - Ucraina 581
BR - Brasile 478
RU - Federazione Russa 372
SE - Svezia 358
FI - Finlandia 305
FR - Francia 200
LV - Lettonia 170
GB - Regno Unito 162
DE - Germania 131
IT - Italia 128
BG - Bulgaria 125
KR - Corea 109
IN - India 86
CA - Canada 46
AR - Argentina 42
HK - Hong Kong 38
BD - Bangladesh 35
IQ - Iraq 35
MX - Messico 32
JO - Giordania 25
PK - Pakistan 25
PL - Polonia 25
JP - Giappone 23
ES - Italia 22
NL - Olanda 19
ZA - Sudafrica 18
ID - Indonesia 16
EC - Ecuador 15
TR - Turchia 15
IL - Israele 11
CL - Cile 10
CO - Colombia 9
EG - Egitto 9
TH - Thailandia 9
AU - Australia 8
PH - Filippine 8
BY - Bielorussia 7
PE - Perù 7
AZ - Azerbaigian 6
KE - Kenya 6
PT - Portogallo 6
SA - Arabia Saudita 6
AE - Emirati Arabi Uniti 5
CI - Costa d'Avorio 5
HR - Croazia 5
LT - Lituania 5
MA - Marocco 5
OM - Oman 5
CH - Svizzera 4
ET - Etiopia 4
IE - Irlanda 4
NZ - Nuova Zelanda 4
PY - Paraguay 4
RO - Romania 4
TW - Taiwan 4
UZ - Uzbekistan 4
VE - Venezuela 4
ZW - Zimbabwe 4
DO - Repubblica Dominicana 3
DZ - Algeria 3
GA - Gabon 3
GR - Grecia 3
KG - Kirghizistan 3
LB - Libano 3
SK - Slovacchia (Repubblica Slovacca) 3
TN - Tunisia 3
AL - Albania 2
AO - Angola 2
BH - Bahrain 2
CR - Costa Rica 2
CZ - Repubblica Ceca 2
HN - Honduras 2
MD - Moldavia 2
NI - Nicaragua 2
NP - Nepal 2
QA - Qatar 2
SY - Repubblica araba siriana 2
TT - Trinidad e Tobago 2
UY - Uruguay 2
AT - Austria 1
BE - Belgio 1
BN - Brunei Darussalam 1
BO - Bolivia 1
BW - Botswana 1
EE - Estonia 1
EU - Europa 1
GD - Grenada 1
GY - Guiana 1
HU - Ungheria 1
IR - Iran 1
IS - Islanda 1
JM - Giamaica 1
KZ - Kazakistan 1
MK - Macedonia 1
MY - Malesia 1
NG - Nigeria 1
Totale 16.477
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Città #
Jacksonville 1.264
Singapore 1.093
Chandler 884
Fairfield 799
Ashburn 684
Woodbridge 406
Dallas 386
San Jose 367
Wilmington 328
Seattle 327
Santa Clara 320
Columbus 312
Princeton 307
San Mateo 280
Houston 264
Cambridge 253
Ann Arbor 222
Moscow 204
Ho Chi Minh City 192
Hanoi 174
Riga 170
New York 164
Lauterbourg 147
Beijing 134
Sofia 122
Dearborn 120
Boardman 117
Helsinki 116
Seoul 104
Los Angeles 96
The Dalles 88
Hefei 84
Buffalo 71
Da Nang 50
São Paulo 49
Munich 42
San Diego 42
London 36
Lawrence 32
Redondo Beach 30
Orem 27
Düsseldorf 26
Haiphong 26
Norwalk 26
Bremen 24
Hong Kong 23
Guangzhou 22
Warsaw 21
Chennai 20
Chicago 20
Milan 20
Turku 20
Falls Church 19
Fremont 19
Tokyo 18
Andover 17
Johannesburg 17
Rio de Janeiro 17
Toronto 17
Nanjing 16
Brooklyn 15
Denver 15
Des Moines 15
Kunming 14
Shanghai 14
Verona 14
Hải Dương 13
Paris 13
Brasília 12
Jinan 12
Stockholm 12
Baghdad 11
Belo Horizonte 11
Biên Hòa 11
Bến Tre 11
Porto Alegre 11
San Paolo di Civitate 11
Atlanta 10
Boston 10
Lahore 10
Nha Trang 10
Thái Nguyên 10
Buenos Aires 9
Campinas 9
Izmir 9
Manchester 9
Montreal 9
Old Bridge 9
Phoenix 9
Poplar 9
Can Tho 8
Changsha 8
Frankfurt am Main 8
Madrid 8
San Francisco 8
Santo André 8
Shenyang 8
Costa Mesa 7
Jakarta 7
Minsk 7
Totale 11.709
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Nome #
Arboxeniolide-1, a New, Naturally Occurring Xeniolide Diterpenoid from the Gorgonian Paragorgia arborea of the Crozet Is. (S. Indian Ocean) 204
Agelastatin A, a New-Skeleton Cytotoxic Alkaloid of Oroidin Family. Isolation from the Axinellid Sponge Agelas dendromorpha of Coral Sea 191
A novel type of a second epoxy bridge in eunicellane diterpenes: isolation and 188
A Novel, Degraded Polyketidic Lactone, Leptosphaerolide, and Its Likely Diketone Precursor, Leptosphaerodione. Isolation from Cultures of the Marine Ascomycete Leptosphaeria oraemaris (LINDER) 182
(+)-Coralloidin-A and (-)-Coralloidin-B, Two New Sesquiterpenoids from the Mediterranean Alcyonacean Alcyonium coralloides 171
(+)-Raspailyne-A, a novel, acid-sensitive acetylenic enol ether glyceride from the marine sponge Raspailia pumila 170
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 164
Antimicrobial Activities from Marine Fungi 163
Hanishin, a semiracemic, bioactive C9 alkaloid of the axinellid sponge Acanthella carteri from the Hanish Islands. A shunt metabolite? 157
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 151
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) 149
A New, Unexpected Marine Source of a Molting Hormone. Isolation of Ecdysterone in Large Amounts from the Zoanthid Gerardia savaglia 149
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 147
Aztèquynol A, the first clearly defined, C-branched polyacetylene and the analogue Aztèquynol B. Isolation from the tropical marine sponge Petrosia sp 147
2'-Deoxynucleoside Uronic Acids from the Ascidian Aplidium (=Amarocium) fuscum (Drasche, 1883) 147
Almazole D, a new type of antibacterial 2,5-disubstituted oxazolic dipeptide from a red alga of the coast of Senegal 145
Glutathione S-transferase catalysed dehalogenation of haloaromatic compounds which lack nitro groups near the reaction centre 142
Novel 10-Hydroxydocosapolyenoic Acids from Deep-Water Scleractinian Corals 140
A synthesis of (S)-(+)-cryptone 137
A Butenolide Atypical of The Ranunculaceae: Aquilegiolide from Aquilegia atrata (Var. Atroviolacea) 137
Some Peculiar Cases of 7-Telesubstitution by Anionic Phosphorus Nucleophiles on 2-Halotropones 134
Sphinxolide, a 26-membered antitumoral macrolide isolated from an unidentified Pacific nudibranch 134
Coralloidin C, D, and E: Novel Eudesmane Sesquiterpenoids from the Mediterranean Alcyonacean Alcyonium coralloides 133
Leiopathic Acid, a Novel Optically Active Hydroxydocosapentaenoic Acid, and Related Compounds, from the Black Coral Leiopathes sp. of Saint Paul Island (S. Indian Ocean) 133
Twelve membered O-bridged, cyclic ethers of red seaweeds in the genus Laurencia exist in solution as slowly interconverting conformers 131
Bretonin A and isobretonin A, unique glycerol derivatives isolated from a demosponge of Brittany waters 127
Cavernicolin-1 and Cavernicolin-2, Two Epimeric Dibromolactams from The Mediterranean Sponge Aplysina (Verongia) cavernicola 126
Dictyotetraene, a New Diterpenoid from a Dictyota sp. (Chromophycota, Dictyotaceae) of the North Brittany Sea 126
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 124
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 122
Antipodal pathways to secondary metabolites in the same eukaryotic organism 122
On the absolute configuration of penlanfuran and related sesquiterpenoids of the sponge Dysidea fragilis from the North-Brittany sea 121
New Furano-Sesquiterpenoids from Mediterranean Sponges 120
Coralloidolide F, the First Example of a 2,6-Cyclized Cembranolide: Isolation from the Mediterranean Alcyonacean Coral Alcyonium coralloides 118
Synthesis of the Alleged Natural Monoterpenoid a-Santolinenone 117
On the First Marine Natural Product Having Low Enantiomeric Purity 116
Glycerol Enol Ethers of the Brachiopod Gryphus vitreus from the Tuscan Archipelago 116
Adriadysolide, the First Monoterpenoid Isolated from a Marine Sponge 115
Novel Cembranolides (Coralloidolide D and E) and a 3,7-Cyclized Cembranolide (Coralloidolide C) from the Mediterranean Coral Alcyonium coralloides 115
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 114
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 114
Isolation of ergosta-4,24(28)-dien-9-one from both Astrophorida demosponges and subantarctic hexactinellides 113
New Functionalized Cycloheptatrienes via Tropone s-Adducts 112
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 112
Preliminary survey of toxicity of the green alga Caulerpa taxifolia introduced into the Mediterranean 111
Dendriphillin A, the First Fungal Trinor-Eremophilane. Isolation from the Marine Deuteromycete Dendryphiella salina (Sutherland) Pugh et Nicot 111
Rarisetenolide, epoxyrarisetenolide and epirarisetenolide, new skeleton sesquiterpene lactones as taxonomic markers and defensive agents of the marine ciliated morphospecies Euplotes rariseta 111
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 110
Selective INEPT Experiments on XL-Series Spectrometers 108
Synthesis of the bretonins, polyolefinic esterified glyceryl ethers of an unidentified sponge from the north- Brittany sea:absolute configuration and novel structure assignment 108
AlmazoleC, a new indole alkaloid bearing an unusually 2,5-disubstituted oxazole moiety, and its putative biogenetic peptidic precursor , from a Senegalese delesseriacean seaweed 108
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 108
Isolation, in large Amounts, of the Rare Plant Ecdysteroid Ajugasterone-C from the Mediterranean Zoanthid Gerardia savaglia 107
Konakhin, a novel type of degraded sesterterpene. Isolation from a marine sponge of Senegal 107
Stereochemical features of sesquiterpene metabolites as a distinctive trait of red seaweeds in the genus Laurencia 107
Hydroxyicosatetraenoic, Hydroxyicosapentaenoic, Hydroxydocosapentaenoic, and Hydroxydocosahexaenoic Acids from the Sponge Echinochalina mollis of the Coral Sea 106
Caratteristiche strutturali e possibili applicazioni di complessi delle euplotine con beta-ciclodestrine 106
Almazole A and almazole B, unusual marine alkaloids isolated from an unidentified red seaweed from the coasts of Senegal 106
Oceanapins A-F, unique branched ceramides isolated from the Haplosclerid sponge Oceanapia cf. tenuis of the Coral Sea 105
Configuration, conformation and reactivity of highly functionalized eunicellane diterpenes isolated from the gorgonians Eunicella cavolinii and Eunicella singularis from Marseille 105
On the absolute configuration of penlanfuran and related sesquiterpenoids of the sponge Dysidea fragilis from the North-Brittany sea 105
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 104
Aplysinopsin-type alkaloids from Dendrophyllia sp., a scleractinian coral of the family Dendrophylliidae of the Philippines. Facile photochemical Z/E photoisomerization and thermal reversal 103
Rogiolol-acetate : a new halogenated chamigrane from the sponge Spongia zimocca. An interesting case of dynamic process investigated by NMR lineshape analysis 103
New 1,2,3,4,-tetrahydropyrrolo[1,2-a]pyridinium alkaloids (phloeodictynes) from the New Caledonian shallow-water haplosclerid sponge Oceanapia fistolosa. Structural elucidation from LC-tandem-MS-soft-ionization techniques and discovery of antiplasmodial activity 103
Leucascandrolide A, a New Type of Macrolide: the First Powerfully Bioactive Metabolite of Calcareous Sponges (Leucascandra caveolata, a New Genus from the Coral Sea) 103
Antibacterial and anticholinesterase activities of aplysamine-4, a bromotyrosine-derived metabolite of a Red Sea marine sponge 103
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 103
A Photochemical Route to 4-Alkytropones including Nezukone 102
Gerardiasterone, a New Ecdysteroid with a 20,22,23,25-Tetrahydroxylated Side Chain from the Mediterranean Zoanthid Gerardia savaglia 102
Isolation from the Medterranean Stoloniferan Coral Sarcodictyon roseum of Sarcodictyn C, D, E, and F, Novel Diterpenoidic Alcohols Esterified by (E)-or(Z)-N(1)-Methylurocanic Acid. Failure of the Carbon-Skeleton Type as a Classification Criterion 102
Caulerpenyne-Amine Reacting System as a Model for in vivo Interactions of Ecotoxicologically Relevant Sesquiterpenoids of the Mediterranean-Adapted Tropical Green Seaweed Caulerpa taxifolia 102
Metabolites with a Novel C30 backbone from marine ciliates 100
Cytotoxins, Mycotoxins and Drugs from a New Deuteromycete, Acremonium neo-caledoniae, from the Southwestern Lagoon of New Caledonia 100
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 99
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? 98
Nuovi terpenoidi da ciliati marini del genere Euplotes : Chimica e Biologia a confronto 97
Analisi conformazionale di nuovi prodotti naturali marini mediante studio di NMR dinamico e calcoli di Meccanica Molecolare 97
Pteridines, Sterols, and Indole Derivatives from the Lithistid Sponge Corallistes undulatus of the Coral Sea 96
Conformational Studies, from temperature-dependent NMR specta, of marine polyalogenated chamigranes 94
On the Funicolides, Briaranes of the Pennatulacean Coral Funicolina quadrangularis from the Tuscan Archipelago: Conformational Preferences in this Class Diterpenes 94
New Types of Potentially Antimalarian Agents: Epidioxy-Substituted Norditerpene and Norsesterpenes from the Marine Sponge Diacarnus levii 92
Sesquiterpenoids of the Sponge Dysidea fragilis of the North-Bryttany Sea 92
Molecular characterization of a highly heterogeneous mixture of glucosylceramides from a deep-water Mediterranean scleractinian Dendrophyllia cornigera 91
Nuovi macrolidi da un nudibranco dell'Oceano Pacifico 91
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 90
Verecynamin A, a Novel Briarane Diterpenoid Isolated from Both the Mediterranean Nudibranch Mollusc Armina maculata and its Prey, the Pennatulacean Octocoral Veretillum cynomorium 89
Coralloidolide A and Coralloidolide B, the First Cembranoids from Mediterranean Organisms, the Alcyonacean Alcyonium coralloides 89
Novel aplysinopsin-type compounds from scleractinian corals of the family Dendrophyllidae of the Mediterraneanand the Philippines. Configurational-assignment criteria, stereospecific synthesis, and photoisomerization 89
First finding of scytonemin in red algae: phylogenetic and ecological implications 89
Sintesi diastereoselettiva e biogeneticamente guidata della volvatellin 89
Epinardins A-C, New Pyrroloiminoquinone Alkaloids of Undetermined Deep-Water Green Demosponges from Pre-Antarctic Indian Ocean 89
Peculiarità strutturali e probabile biogenesi di nuovi diterpeni da una alga rossa Laurencia microcladia 88
Sarcodictyn A and Sarcodictyn B, Novel Diterpenoidic Alcohols Esterified by (E)-N(1)-Methylurocanic Acid. Isolation from the Mediterranean Stolonifer Sarcodictyon roseum 87
Quinolones from a bacterium and tyrosine metabolites from its host sponge, Suberea creba from the Coral Sea 87
Conformational analysis of marine polyhalogenated beta-chamigranes through temperature-dependent NMR spectra 87
High Solvolytic Reactivity And Conformational Bias in New Obtusallenes,A Rare Family of C15 Macrocyclic Ethers 86
Relative Contributions to Antitumoral Activity of Lipophilic vs. Polar Reactive Moieties in Marine Terpenoids 86
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 85
Novel Naamidine-Type Alkaloids and Mixed-Ligand Zn++ Complexes of a Calcareous Sponge, Leucetta sp., from the Coral Sea 85
Totale 11.611
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Categoria #
all - tutte 65.385
article - articoli 0
book - libri 0
conference - conferenze 0
curatela - curatele 0
other - altro 0
patent - brevetti 604
selected - selezionate 0
volume - volumi 0
Totale 65.989
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Totale Lug Ago Sett Ott Nov Dic Gen Feb Mar Apr Mag Giu
2020/2021343 0 0 0 0 0 0 0 0 0 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
2024/20252.487 11 16 136 547 209 353 24 135 166 351 170 369
2025/20264.836 222 103 847 895 462 419 1.101 89 431 267 0 0
Totale 16.530