Search Results - "Pinto, Angelo C."

Synthetic Strategies towards the Azabicyclo[3.3.0]-Octane Core of Natural Pyrrolizidine Alkaloids. An Overview by Martinez, Sabrina T., Belouezzane, Chiraz, Pinto, Angelo C., Glasnov, Toma

“…Organic Preparations and Procedures International Synthetic Strategies towards the Azabicyclo[3.3.0]-Octane Core of Natural Pyrrolizidine Alkaloids…”
Get full text

Antimicrobial activity of Brazilian copaiba oils obtained from different species of the Copaifera genus by dos Santos, Adriana Oliveira, Ueda-Nakamura, Tânia, Filho, Benedito Prado Dias, Junior, Valdir F Veiga, Pinto, Angelo C, Nakamura, Celso Vataru

“…The antimicrobial activity of copaiba oils was tested against Gram-positive and Gram-negative bacteria, yeast, and dermatophytes. Oils obtained from Copaifera…”
Get full text

Chemistry of pyrrolizidine alkaloids revisited—semi-synthetic microwave and continuous-flow approaches toward Crotalaria-alkaloids by Martinez, Sabrina T., Pinto, Angelo C., Glasnov, Toma, Kappe, C. Oliver

“…Efficient and rapid syntheses of various pyrrolizidine alkaloids via microwave synthetic protocols using monocrotaline from a natural source (Crotalaria…”
Get full text

Interactions between Irrigants Commonly Used in Endodontic Practice: A Chemical Analysis by Prado, Maíra, DDS, MSc, Santos Júnior, Helvécio M., DSc, MSc, PhD, Rezende, Claudia M., DSc, MSc, PhD, Pinto, Angelo C., DSc, MSc, PhD, Faria, Roberto B., DSc, MSc, PhD, Simão, Renata A., DSc, MSc, PhD, Gomes, Brenda P.F.A., DDS, MSc, PhD

“…Abstract Introduction The aim of this work was to characterize the by-products formed in the associations between the most commonly used irrigants in…”
Get full text

The chemistry of isatins: a review from 1975 to 1999 by Silva, Joaquim F. M. da, Garden, Simon J., Pinto, Angelo C.

“…Isatins (1H-indole-2,3-dione) are synthetically versatile substrates, where they can be used for the synthesis of a large variety of heterocyclic compounds,…”
Get full text

Isatin halogen-derivatives redox behaviour by Fernandes, Isabel P.G., Silva, Bárbara V., Silva, Bianca N.M., C. Pinto, Angelo, Oliveira, S. Carlos B., Oliveira-Brett, Ana Maria

“…Isatin halogen-derivatives like other isatin derivatives have several pharmacoterapeutic applications, such as antibacterial, antitubercular, and anticancer…”
Get full text

Anthranilic acids from isatin: an efficient, versatile and environmentally friendly method by Rio, Gabriel F, Silva, Bárbara V, Martinez, Sabrina T, Pinto, Angelo C

“…This paper describes the preparation of a series of 16 anthranilic acids in yields ranging from 51 to 97%, by treating the isatins with NaOH and H2O2…”
Get full text

Antinociceptive and anti-inflammatory effects of a Geissospermum vellosii stem bark fraction by Lima, Josélia A, Costa, Thiago W R, Silva, Leandro L, Miranda, Ana Luísa P, Pinto, Angelo C

“…Geissospermum vellosii (Pao pereira) is a Brazilian tree whose stem barks are rich in indole alkaloids that present intense anticholinesterase activity. The…”
Get full text

Synthesis of porphyrin indolin-2-one conjugates via palladium-catalyzed amination reactions by Menezes, José C.J.M.D.S., Pereira, Ana M.V.M., Neves, Maria G.P.M.S., Silva, Artur M.S., Santos, Sérgio M., Martinez, Sabrina T., Silva, Bárbara V., Pinto, Ângelo C., Cavaleiro, José A.S.

“…New porphyrin indolin-2-one conjugates were synthesized via palladium-catalyzed amination reactions of iodinated and dibrominated indolin-2-one derivatives…”
Get full text

New Hemiketal Steroid from the Introduced Soft Coral Chromonephthea braziliensis is a Chemical Defense against Predatory Fishes by Fleury, Beatriz G, Lages, Bruno G, Barbosa, Jussara P, Kaiser, Carlos R, Pinto, Angelo C

“…Recent studies show that chemical defenses in the exotic soft coral Chromonephthea braziliensis Ofwegen (Nephtheidae, Alcyonacea) can be one of the reasons for…”
Get full text

Anthraquinones from the bark of Senna macranthera by Branco, Alexsandro, Pinto, Angelo C, Schripsema, Jan, Braz-Filho, Raimundo

“…2-acetyl physcion (2-acetyl-1,8-dihydroxy-6-methoxy-3-methyl-9,10-anthraquinone, 2), a rare anthraquinone, was isolated from Senna macranthera var. nervosa…”
Get full text

A versatile synthetic methodology for the synthesis of tryptophols by Garden, Simon J, da Silva, Rosângela B, Pinto, Angelo C

“…Tryptophols have been obtained in high yields by the reduction of 3-substituted-dioxindoles (obtained by the aldol condensation reaction of ketones with…”
Get full text

Esterification of fatty acids using acid-activated Brazilian smectite natural clay as a catalyst by Rezende, Michelle J.C., Pinto, Angelo C.

“…This work reports the use of an acid-activated Brazilian smectite natural clay-based catalyst in the esterification of fatty acids at atmospheric pressure and…”
Get full text

Terpenes from Copaifera Demonstrated in Vitro Antiparasitic and Synergic Activity by Izumi, Erika, Ueda-Nakamura, Tânia, Veiga, Valdir F, Pinto, Angelo C, Nakamura, Celso Vataru

“…To discover new possible therapies for Chagas' disease, we evaluated against all Trypanosoma cruzi life stages the in vitro trypanocidal and synergistic…”
Get full text

Molluscicidal activity of 2-hydroxy-[1,4]naphthoquinone and derivatives by Camara, Celso A, Silva, Tania M S, da-Silva, Thiago G, Martins, Rodrigo M, Barbosa, Ticiano P, Pinto, Angelo C, Vargas, Maria D

“…The toxic profile of lawsone (2-hydroxy-[1,4]naphthoquinone) and a series of [1,4]naphthoquinone derivatives was evaluated against the brine shrimp Artemia…”
Get full text

Leishmanicidal activity of Himatanthus sucuuba latex against Leishmania amazonensis by Soares, Deivid C, Andrade, Alexandre L.S, Delorenzi, Jan C, Silva, Jefferson R.A, Freire-de-Lima, Leonardo, Falcão, Camila A.B, Pinto, Angelo C, Rossi-Bergmann, Bartira, Saraiva, Elvira M

“…Abstract Himatanthus sucuuba (HsL) latex exhibited a potent leishmanicidal activity against intracellular amastigotes of Leishmania amazonensis , a causative…”
Get full text

Phytochemical and antioedematogenic studies of commercial copaiba oils available in Brazil by Veiga, Valdir F. Jr, Zunino, Luciano, Calixto, João B, Patitucci, Maria L, Pinto, Ângelo C

“…The composition of eight samples of commercial copaiba oils, used in the Amazonian region as antiinflammatory agents and available in popular markets, were…”
Get full text

INTEGRIDADE CIENTÍFICA: COMPROMISSO DA SBQ by Pinto, Angelo C.

Get full text

New hydrazides derivatives of isoniazid against Mycobacterium tuberculosis: Higher potency and lower hepatocytotoxicity by Castelo-Branco, Frederico Silva, de Lima, Evanoel Crizanto, Domingos, Jorge Luiz de Oliveira, Pinto, Angelo C., Lourenço, Maria Cristina S., Gomes, Karen Machado, Costa-Lima, Mariana Marques, Araujo-Lima, Carlos Fernando, Aiub, Claudia Alessandra Fortes, Felzenszwalb, Israel, Costa, Thadeu Estevam M.M., Penido, Carmen, Henriques, Maria G., Boechat, Nubia

“…Tuberculosis (TB) is one of the leading causes of death worldwide. The emergence of multi-drug resistant strains of Mycobacterium tuberculosis (Mtb) and TB-HIV…”
Get full text

The Role of Additives for Diesel and Diesel Blended (Ethanol or Biodiesel) Fuels:  A Review by Ribeiro, Núbia M, Pinto, Angelo C, Quintella, Cristina M, da Rocha, Gisele O, Teixeira, Leonardo S. G, Guarieiro, Lílian L. N, do Carmo Rangel, Maria, Veloso, Márcia C. C, Rezende, Michelle J. C, Serpa da Cruz, Rosenira, de Oliveira, Ana Maria, Torres, Ednildo A, de Andrade, Jailson B

“…Around the world, there is a growing increase in biofuels consumption, mainly ethanol and biodiesel as well as their blends with diesel that reduce the cost…”
Get full text