A. Usubillaga: search on Z-Library

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1

Composition of the Essential Oil from the Leaves of Eryngium foetidum L. from the Venezuelan Andes

Cardozo, E., Rubio, M., Rojas, L. B., Usubillaga, A.

Journal:

Journal of Essential Oil Research

Year:

2004

Language:

english

File:

PDF, 65 KB

english, 2004

2

Volatile Constituents from the Flowers of Spathodea campanulata from the Venezuelan Andes

Villarreal, Silvana, Jaimez, Deisy, Moreno, Sindy, Rojas, Luis B., Usubillaga, Alfredo, Rodríguez, María

Journal:

Natural Product Communications

Year:

2015

File:

PDF, 263 KB

2015

3

Lignans fromKrameria ixina

Hans Achenbach, Wolfgang Utz, Alfredo Usubillaga, Henry A. Rodriguez

Journal:

Year:

1991

Language:

english

File:

PDF, 370 KB

english, 1991

4

Rhodium catalyzed hydroformylation of kaurane derivatives: A route to new diterpenes with potential bioactivity

Andreia F. Peixoto, Daniela S. de Melo, Tânia F. Fernandes, Yuraima Fonseca, Elena V. Gusevskaya, Artur M.S. Silva, Ricardo R. Contreras, Marisela Reyes, Alfredo Usubillaga, Eduardo N. dos Santos, Mar

Journal:

Applied Catalysis A: General

Year:

2008

Language:

english

File:

PDF, 673 KB

english, 2008

5

Steroidal alkaloids from Solanum sycophanta

Alfredo Usubillaga, Ieman Aziz, Maria C. Tettamanzi, Reiner Waibel, Hans Achenbach

Journal:

Year:

1997

Language:

english

File:

PDF, 530 KB

english, 1997

6

Another new family of “extended” glucidoamphiphiles. Synthesis and surfactant properties for different sugar head groups and spacer arm lengths

C. Scorzza, P. Godé, G. Goethals, P. Martin, M. Miñana-Pérez, J. L. Salager, A. Usubillaga, P. Villa

Journal:

Journal of Surfactants and Detergents

Year:

2002

Language:

english

File:

PDF, 146 KB

english, 2002

7

Synthesis of new extended surfactants containing a carboxylate or sulfate polar group

Alvaro Fernández, Cesar Scorzza, Alfredo Usubillaga, Jean-Louis Salager

Journal:

Journal of Surfactants and Detergents

Year:

2005

Language:

english

File:

PDF, 146 KB

english, 2005

8

Synthesis of new extended surfactants containing a xylitol polar group

Alvaro Fernández, Cesar Scorzza, Alfredo Usubillaga, Jean-Louis Salager

Journal:

Journal of Surfactants and Detergents

Year:

2005

Language:

english

File:

PDF, 791 KB

english, 2005

9

Steroidal saponins from the fruits of Solanum torvum

Pérez Colmenares, Alida, Rojas, Luis B., Mitaine-Offer, Anne-Claire, Pouységu, Laurent, Quideau, Stéphane, Miyamoto, Tomofumi, Tanaka, Chiaki, Paululat, Thomas, Usubillaga, Alfredo, Lacaille-Dubois, M

Journal:

Year:

2013

Language:

english

File:

PDF, 258 KB

english, 2013

10

Chemical Composition and Antibacterial Activity of Origanum majorana L. Essential Oil from the Venezuelan Andes

Ramos, Sulymar, Rojas, Luis B., Lucena, Maria Eugenia, Meccia, Gina, Usubillaga, Alfredo

Journal:

Journal of Essential Oil Research

Year:

2011

Language:

english

File:

PDF, 530 KB

english, 2011

11

ANTI-SNAKE VENOM EFFECT OF ARISTOLOCHIA ODORATISSIMA L. AQUEOUS EXTRACT ON MICE

Usubillaga, A., Khouri, N., Cedillo-Vaz, S., Yibirin, E.

Journal:

Acta Horticulturae

Year:

2005

Language:

english

File:

PDF, 85 KB

english, 2005

12

Mutations in CDKN2A and the FGFR3 genes on bladder cancer diagnosis: a systematic review and meta-analysis

García-Perdomo, Herney Andrés, Usubillaga-Velasquez, Juan Pablo, Zapata-Copete, James Alejandro, Reis, Leonardo Oliveira

Journal:

World Journal of Urology

Year:

2019

Language:

english

File:

PDF, 895 KB

english, 2019

13

Volatile Constituents from the Flowers of Spathodea campanulata from the Venezuelan Andes

Villarreal, Silvana, Jaimez, Deisy, Moreno, Sindy, Rojas, Luis B., Usubillaga, Alfredo, Rodríguez, María

Journal:

Natural Product Communications

Year:

2015

Language:

english

File:

PDF, 263 KB

english, 2015

14

Composition of the essential oil of Satureja brownei (SW.) Briq. from Venezuela

Luis B. Rojas, Alfredo Usubillaga

Journal:

Flavour and Fragrance Journal

Year:

2000

Language:

english

File:

PDF, 82 KB

english, 2000

15

The essential oil of Espeletia weddellii Sch. Bip. ex Wedd

N. Khouri, A. Usubillaga, L. B. Rojas, F. Galarraga

Journal:

Flavour and Fragrance Journal

Year:

2000

Language:

english

File:

PDF, 63 KB

english, 2000

16

Chemical composition of the essential oils of exudates from Pinus oocarpa Schiede

Jesús Velásquez, María E Toro, Osvaldo Encinas, Luis Rojas, Alfredo Usubillaga

Journal:

Flavour and Fragrance Journal

Year:

2000

Language:

english

File:

PDF, 57 KB

english, 2000

17

ChemInform Abstract: 3α-Hydroxytirucalla-7,24-dien-21-oic Acid: A Triterpene from Protium crenatum Sandwith

Asiloe J. Mora, Gerzon Delgado, Graciela Diaz de Delgado, Alfredo Usubillaga, Nancy Khouri, Ali Bahsas

Journal:

Year:

2001

File:

PDF, 29 KB

2001

18

Study of the essential oils from the leaves and flowers of Lepechinia conferta (Benth) Epl.

Rebeca Borges, Luis B. Rojas, Jesús A. Cegarra, Alfredo Usubillaga

Journal:

Flavour and Fragrance Journal

Year:

2006

Language:

english

File:

PDF, 68 KB

english, 2006

19

The essential oil of Espeletia schultzii of different altitudinal populations

J. Ibañez, A. Usubillaga

Journal:

Flavour and Fragrance Journal

Year:

2006

Language:

english

File:

PDF, 135 KB

english, 2006

20

Analysis of the essential oil of two different altitudinal populations of Coespeletia moritziana (Sch. Bip.ex Wedd) Cuatrec

J. Ibañez, A. Usubillaga

Journal:

Flavour and Fragrance Journal

Year:

2006

Language:

english

File:

PDF, 160 KB

english, 2006

21

Volatile constituents from the leaves of four Libanothamus species from the Venezuelan Andes

A. Usubillaga, R. Aparicio, M. Romero, L. B. Rojas, N. Khouri

Journal:

Flavour and Fragrance Journal

Year:

2001

Language:

english

File:

PDF, 74 KB

english, 2001

22

Composition of the essential oil of four species of Ruilopezia from the Venezuelan Andes

R. Aparicio, M. Romero, L. B. Rojas, N. Khouri, A. Usubillaga

Journal:

Flavour and Fragrance Journal

Year:

2001

Language:

english

File:

PDF, 71 KB

english, 2001

23

Analysis of kaurenic acids methyl esters by gas chromatography

Elysabeth Viloria, Luis Rojas, Alfredo Usubillaga

Journal:

Journal of Separation Science

Year:

1997

Language:

english

File:

PDF, 157 KB

english, 1997

24

Synthesis, stereochemical analysis, and neuromuscular blocking activity of oximino ether derivatives of progesterone

Nancy Khouri, Alfredo Usubillaga, Sarah Cedillo Vaz, Jaime N. Delgado

Journal:

Journal of Pharmaceutical Sciences

Year:

1991

Language:

english

File:

PDF, 440 KB

english, 1991

25

Solaquidine, a new steroidal alkaloid from Solanum pseudoquina

Alfredo Usubillaga, Gisela de Castellano, Judith Hidalgo, Carmela Guevara, Pablo Martinod, Alfredo Paredes

Journal:

Year:

1977

Language:

english

File:

PDF, 193 KB

english, 1977

26

Kaurenic acids in Espeletia species

A. Usubillaga, A. Morales

Journal:

Year:

1972

Language:

english

File:

PDF, 155 KB

english, 1972

27

Kauranoid diterpenes in Espletia species

A. Usubillaga, J. de Hernandez, N. Perez, M. Kiriakidis

Journal:

Year:

1973

Language:

english

File:

PDF, 85 KB

english, 1973

28

Andesgenin, a new steroid sapogenin from Solanum hypomalacophyllum

Antonio G. González, Cosme G. Francisco, Raimundo Freire, Rosendo Hernández, José A. Salazar, Ernesto Suárez, Antonio Morales, Alfredo Usubillaga

Journal:

Year:

1975

Language:

english

File:

PDF, 321 KB

english, 1975

29

13C NMR spectra of 4-keto steroidal alkaloids

Journal:

Year:

1988

Language:

english

File:

PDF, 334 KB

english, 1988

30

Solanudine, a steroidal alkaloid from Solanum nudum

Journal:

Year:

1988

Language:

english

File:

PDF, 131 KB

english, 1988

31

Rearrangements of methyl 9β-hydroxy-11-oxo-(−)-kauran-19-oate to diterpene skeletons with new ring systems

Tatsuhiko Nakano, Maria Aracelis Maillo, Alfredo Usubillaga, Andrew T. McPhail, Donald R. McPhail

Journal:

Tetrahedron Letters

Year:

1991

Language:

english

File:

PDF, 245 KB

english, 1991

32

Synthesis of chacotriose analogues

Vincent Lequart, Gérard Goethals, Alfredo Usubillaga, Pierre Villa, Roméo Cecchelli, Patrick Martin

Journal:

Carbohydrate Research

Year:

2004

Language:

english

File:

PDF, 296 KB

english, 2004

33

Synthesis of peracetylated chacotriose

Marielba Morillo, Vincent Lequart, Eric Grand, Gérard Goethals, Alfredo Usubillaga, Pierre Villa, Patrick Martin

Journal:

Carbohydrate Research

Year:

2001

Language:

english

File:

PDF, 181 KB

english, 2001

34

Sapogenins from Solanum meridense

Brigita de Valeri, Alfredo Usubillaga

Journal:

Year:

1989

Language:

english

File:

PDF, 306 KB

english, 1989

35

Essential oil of Coespeletia timotensis Cuatrec

Luis B. Rojas, Alfredo Usubillaga, Federico Galarraga

Journal:

Year:

1999

Language:

english

File:

PDF, 97 KB

english, 1999

36

Backbone rearrangements of methyl (-)-kaur-9(11)-en-19-oate and its epoxide: structures of two diterpenes of a new skeletal type

Tatsuhiko Nakano, A.C. Spinelli, A. Martín, A. Usubillaga, Andrew T. McPhail, Kay D. Onan

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 210 KB

english, 1982

37

Toxicological effects of α-solamargine in experimental animals

Lina Al Chami, Ramón Méndez, Bernardo Chataing, James O'Callaghan, Alfredo Usubillaga, Luis LaCruz

Journal:

Phytotherapy Research

Year:

2003

Language:

english

File:

PDF, 93 KB

english, 2003

38

Pentacyclic triterpenes fromSarcostemma clausum

L. B. Rojas, M. Grignon-Dubois, B. Rezzonico, A. Usubillaga

Journal:

Chemistry of Natural Compounds

Year:

2004

Language:

english

File:

PDF, 31 KB

english, 2004

39

Isolation of Plumieride fromPlumeria inodora

Micheline Grignon-Dubois, Bernadette Rezzonico, Alfredo Usubillaga, Luis B. Vojas

Journal:

Chemistry of Natural Compounds

Year:

2005

Language:

english

File:

PDF, 18 KB

english, 2005

40

Cytotoxic and apoptosis-inducing effect of ent-15-oxo-kaur-16-en-19-oic acid, a derivative of grandiflorolic acid from Espeletia schultzii

Yarimar Ruiz, Juan Rodrígues, Francisco Arvelo, Alfredo Usubillaga, Mariugenia Monsalve, Nardy Diez, Iván Galindo-Castro

Journal:

Year:

2008

Language:

english

File:

PDF, 288 KB

english, 2008

41

Effect of Solanum Glycoalkaloids on Potato Aphid, Macrosiphum euphorbiae: Part II

Carlos Güntner, Álvaro Vázquez, Gabriel González, Alfredo Usubillaga, Fernando Ferreira, Patrick Moyna

Journal:

Journal of Chemical Ecology

Year:

2000

Language:

english

File:

PDF, 73 KB

english, 2000

42

Experimental Conditions for HPLC Analysis of Ethoxylated Alkyl Phenol Surfactants in Microemulsion Systems. Part I. Isocratic Mode with Mixed Solvents

Marquez, N., Anton, R. E., Usubillaga, A., Salager, J. L.

Journal:

Separation Science and Technology

Year:

1993

Language:

english

File:

PDF, 601 KB

english, 1993

43

Assessment of in vitro dermal absorption of the kaurenic acid from Coespeletia Moriziana extracts

J.P. Mestres, A. Usubillaga, L. Diaz, M. Larroque, L. Vian, G. Marti-Mestres

Journal:

Year:

2011

Language:

english

File:

PDF, 492 KB

english, 2011

44

Central venous catheter colonization with Staphylococcus aureus is not always an indication for antimicrobial therapy

P. Muñoz, A. Fernández Cruz, R. Usubillaga, A. Zorzano, M. Rodríguez-Créixems, M. Guembe, E. Bouza

Journal:

Clinical Microbiology and Infection

Year:

2012

Language:

english

File:

PDF, 56 KB

english, 2012

45

Volatile Constituents from the Leaves of Three Coespeletia Species from the Venezuelan Andes

Aparicio, Rosa, Romero, Marianella, Khouri, Nancy, Rojas, Luis B., Usubillaga, Alfredo

Journal:

Journal of Essential Oil Research

Year:

2002

Language:

english

File:

PDF, 258 KB

english, 2002

46

Steroidal Sapogenins from Solanum scorpioideum

Usubillaga, Alfredo N., Meccia, Gina

Journal:

Journal of Natural Products

Year:

1987

Language:

english

File:

PDF, 401 KB

english, 1987

47

PCR for Detection of Herpes Simplex Virus in Cerebrospinal Fluid: Alternative Acceptance Criteria for Diagnostic Workup

Lopez Roa, P., Alonso, R., de Egea, V., Usubillaga, R., Munoz, P., Bouza, E.

Journal:

Journal of Clinical Microbiology

Year:

2014

Language:

english

File:

PDF, 135 KB

english, 2014

48

Studies on Rearrangements in Derivatives of Grandiflorenic Acid, Part 2. Synthesis of Methyl (-)-20-Norkaur-9α-Methyl-5(10), 16-Dien-19-Oate, A New Tetracyclic Rosane-Type Diterpene

Nakano, Tatsuhiko, Martín, Alfonso, Usubillaga, Alfredo

Journal:

Journal of Natural Products

Year:

1986

Language:

english

File:

PDF, 264 KB

english, 1986

49

Structure of solaphyllidine, a novel 4-ketosteroidal alkaloid

Usubillaga, Alfredo., Seelkopf, Carl., Karle, Isabella L., Daly, John W., Witkop, B.

Journal:

Journal of the American Chemical Society

Year:

1970

Language:

english

File:

PDF, 216 KB

english, 1970

50

Alkaloids from Solanum hypomalacophyllum

Journal:

Journal of Natural Products

Year:

1984

Language:

english

File:

PDF, 217 KB

english, 1984