Search Results - "Guadagnin, Rafael"

Chemical composition and cytotoxicity evaluation of essential oil from leaves of Casearia sylvestris, its main compound α-zingiberene and derivatives by Bou, Diego Dinis, Lago, João Henrique G, Figueiredo, Carlos R, Matsuo, Alisson L, Guadagnin, Rafael C, Soares, Marisi G, Sartorelli, Patricia

“…Casearia sylvestris (Salicaceae), popularly known as "guaçatonga", is a plant widely used in folk medicine to treat various diseases, including cancer. The…”
Get full text

Antileishmanial Effects of Acetylene Acetogenins from Seeds of Porcelia macrocarpa (Warm.) R.E. Fries (Annonaceae) and Semisynthetic Derivatives by Brito, Ivanildo A, Thevenard, Fernanda, Costa-Silva, Thais A, Oliveira, Samuel S, Cunha, Rodrigo L O R, de Oliveira, Emerson A, Sartorelli, Patricia, Guadagnin, Rafael C, Romanelli, Maiara M, Tempone, Andre G, Lago, João Henrique G

“…As part of our continuous studies involving the prospection of natural products from Brazilian flora aiming at the discovery of prototypes for the development…”
Get full text

Differential lethal action of C17:2 and C17:0 anacardic acid derivatives in Trypanosoma cruzi – A mechanistic study by Umehara, Eric, Costa Silva, Thais A., Mendes, Viviane M., Guadagnin, Rafael C., Sartorelli, Patricia, Tempone, Andre G., Lago, João Henrique G.

“…[Display omitted] •A C17:2 derivative of anacardic acid (1) was isolated from Schinus terebinthifolius.•Compound 1 was subjected to hydrogenation to afford a…”
Get full text

Understanding the cytotoxic effects of new isovanillin derivatives through phospholipid Langmuir monolayers by de Carvalho, Ana C., Girola, Natália, de Figueiredo, Carlos R., Machado, André C., de Medeiros, Lívia S., Guadagnin, Rafael C., Caseli, Luciano, Veiga, Thiago A.M.

“…[Display omitted] •Hydroxymethyl and alkyl groups decrease IC50 values and increase the selectivity.•Modifications modulate the interaction with the membrane…”
Get full text

Essential oils from Schinus terebinthifolius leaves - chemical composition and in vitro cytotoxicity evaluation by Santana, Jeferson S, Sartorelli, Patricia, Guadagnin, Rafael C, Matsuo, Alisson L, Figueiredo, Carlos R, Soares, Marisi G, da Silva, Adalberto M, Lago, João Henrique G

“…In folk medicine, Schinus terebinthifolius Raddi (Anacardiaceae), has been used as a remedy for ulcers, respiratory problems, wounds, rheumatism, gout,…”
Get more information

Dammarane Triterpenoids from Carnauba, Copernicia prunifera (Miller) H. E. Moore (Arecaceae), Wax by de Almeida, Buana, Araújo, Bruno, Barros, Elcio, Freitas, Sâmya, Maciel, Dayany, Ferreira, Ari, Guadagnin, Rafael, Vieira Júnior, Gerardo, Lago, João, Chaves, Mariana

“…Phytochemical investigation from carnauba (Copernicia prunifera) wax led to the identification of sixteen dammarane-type triterpenes, including thirteen new…”
Get full text

Nucleophilic addition of potassium organotrifluoroborates to chiral cyclic N-acyliminium ions: stereoselective synthesis of functionalized N-heterocycles by Vieira, Adriano S., Ferreira, Fernando P., Fiorante, Pedro F., Guadagnin, Rafael C., Stefani, Hélio A.

“…The stereoselective nucleophilic addition of potassium aryl- and alkynyltrifluoroborates to cyclic N-acyliminium ion derivatives from…”
Get full text

Preparation and Reactivity of Chalcogenyl Phosphonates and Phosphane Oxides by Silveira, Claudio C., Rinaldi, Francieli, Guadagnin, Rafael C.

“…The preparation of new bis[(diphenylphosphinoyl)methyl] sulfides, selenides, and tellurides is described by the reaction of (diphenylphosphinoyl)methyl…”
Get full text

Potassium trifluoro-[(Z)-3-methoxy-prop-1-en-yl]borate by Zukerman-Schpector, Julio, Guadagnin, Rafael C, Stefani, Hélio A, do Canto Visentin, Lorenzo

“…In the title salt, K(+)·C(4)H(7)BF(3)O(-), the K atom is surrounded by six anions making close contacts through seven F [K⋯F = 2.779 (1)-3.048 (1) Å] and two O…”
Get full text

Mechanistic aspects of the isomerization of Z-vinylic tellurides double bonds in the synthesis of potassium Z-vinyltrifluoroborate salts by Stefani, Hélio A, Guadagnin, Rafael C, Keppler, Artur F, Botteselle, Giancarlo V, Comasseto, João V, Suganuma, Carlos A

“…Through direct transmetalation reaction of Z-vinylic tellurides with nBuLi was observed the unexpected isomerization of double bonds leading to potassium…”
Get full text

In vitro trypanocidal evaluation of pinane derivatives from essential oils of ripe fruits from Schinus terebinthifolius Raddi (Anacardiaceae) by Sartorelli, Patricia, Santana, Jefferson S., Guadagnin, Rafael C., Lago, João Henrique G., Pinto, Érika G., Tempone, André G., Stefani, Hélio A., Soares, Marisi G., Silva, Adalberto M. da

“…Essential oils of ripe fruits from Schinus terebinthifolius (Anacardiaceae), obtained using a pilot extractor and a Clevenger apparatus were chemically…”
Get full text

Potassium trifluoro-[(Z)-3-(oxan-2-yl-oxy)prop-1-en-1-yl]borate monohydrate by Zukerman-Schpector, Julio, Guadagnin, Rafael C, Stefani, Hélio A, do Canto Visentin, Lorenzo

“…The title compound, K(+)·C(8)H(13)BF(3)O(2) (-)·H(2)O, which was obtained from the reaction of a modified form of Z-vinylic telluride via a transmetalation…”
Get full text

Cinnamomum triplinerve essential oil as an amikacin carrier agent to combat a polymyxin-resistant Klebsiella pneumoniae strain by Arantes, Julia Pimentel, Faccin, Izadora Dillis, Rossato, Luana, Coutinho, Eduardo João, Guadagnin, Rafael Carlos, Fernandes, Shaline Sefara Lopes, Simionatto, Euclésio, Simionatto, Simone

“…Essential oils (EOs) are a complex mix of chemical compounds and can have antibacterial activity. Thus, they can improve the delivery and effectiveness of…”
Get full text

1-[( Z )-2-Butyltellanyl-1-chloroethenyl]cyclohex-1-ene by Zukerman-Schpector, Julio, Caracelli, Ignez, Guadagnin, Rafael Carlos, Stefani, Hélio A., Tiekink, Edward R. T.

“…The TeII atom in the title molecule, C12H19ClTe, is coordinated in a V-shaped geometry by C atoms derived from the disparate organic substituents. A short…”
Get full text

1-[( Z )-1-Bromo-2-(butyldichloro-λ 4 -tellanyl)ethenyl]cyclohex-1-ene by Zukerman-Schpector, Julio, Caracelli, Ignez, Guadagnin, Rafael Carlos, Stefani, Hélio A., Tiekink, Edward R. T.

“…The TeIV atom in the title compound, [Te(C4H9)(C8H10Br)Cl2] or C12H19BrCl2Te, is in a distorted ψ-trigonal–bipyramidal geometry, with the lone pair…”
Get full text

Sesquiterpenes, diterpenes, alkenyl p-coumarates, and flavonoid from the aerial parts of Baccharis retusa (Asteraceae) by Ueno, Anderson K., Barcellos, Aline F., Grecco, Simone dos S., Sartorelli, Patricia, Guadagnin, Rafael C., Romoff, Paulete, Ferreira, Marcelo Jose P., Tcacenco, Celize M., Lago, João Henrique G.

“…[Display omitted] •The present work describes the phytochemical analysis from aerial parts of B. retusa.•Sesquiterpenes, diterpenes, flavonoid and alkenyl…”
Get full text

Chemoselective cross-coupling Suzuki–Miyaura reaction of ( Z)-(2-chlorovinyl)tellurides and potassium aryltrifluoroborate salts by Guadagnin, Rafael C., Suganuma, Carlos A., Singh, Fateh V., Vieira, Adriano S., Cella, Rodrigo, Stefani, Hélio A.

“…An ultrasound-assisted synthesis of functionalized vinylic chlorides is described by palladium-catalyzed cross-coupling reaction of potassium…”
Get full text

Synthesis of Lapachone Derivates via Ionic Liquid‐Mediated Tandem Knoevenagel/Diels‐Alder Reaction by Prado, Karinne E., Name, Luccas L., Oliveira, Rayssa P., Guadagnin, Rafael C., Pimenta, Daniel C., Pena, Jesus M., Cella, Rodrigo

“…The use of ionic liquid (IL) in Tandem Knoevenagel/Diels‐Alder Reaction is an optimization method for one‐pot procedures, providing great results under mild…”
Get full text

Copper catalyzed cross-coupling reactions of diaryl ditellurides with potassium aryltrifluoroborate salts by Alves, Diego, Pena, Jesus M., Vieira, Adriano S., Botteselle, Giancarlo V., Guadagnin, Rafael C., Stefani, Hélio A.

“…We present here results of the cross-coupling reaction of diaryl ditellurides with potassium aryltrifluoroborate salts using a catalytic amount of Cu(OAc)2 and…”
Get full text

2-chlorovinyl tellurium dihalides, (p-tol)Te[C(H)=C(Cl)Ph]X2 for X = Cl, Br and I: variable coordination environments, supramolecular structures and docking studies in cathepsin B by Caracelli, Ignez, Zukerman-Schpector, Julio, Maganhi, Stella H, Stefani, Hélio A, Guadagnin, Rafael, Tiekink, Edward R. T

“…Crystallography shows that the Te atom in each of (p-tol)Te[C(H)=C(Cl)Ph]X2, for X = Cl (1), Br (2) and I (3), is within a distorted Ψ-pentagonal bipyramidal…”
Get full text