ABSTRACT
A regioselective ytterbium-catalyzed annulation reaction between ethylglyoxalate, anilines and silyl-alkynes bearing selenyl- and telluryl-moieties for the formation of poly-substituted quinolones is described. A series of examples formed under mild conditions are presented, including a scaled-up reaction and a study on catalyst recyclability.
ABSTRACT
A regioselective ytterbium-catalyzed annulation reaction between ethylglyoxalate, anilines and silyl-alkynes bearing selenyl- and telluryl-moieties for the formation of poly-substituted quinolones is described. A series of examples formed under mild conditions are presented, including a scaled-up reaction and a study on catalyst recyclability.
ABSTRACT
E descrito um caso de doença de Crohn com grave lesäo perianal e boa resposta ao tratamento com oxigênio hiperbarico
Subject(s)
Humans , Female , Adult , Crohn Disease/therapy , Hyperbaric Oxygenation , Abdomen , Biopsy , Colitis/etiology , Colonoscopy , Duodenoscopy , Rectal FistulaABSTRACT
Os autores apresentam breve relato histórico sobre os eventos que levaram a criaçäo da Policlínica Naval Nossa Senhora da Glória, demonstrando as modificaçöes que se fizeram e se fazem necessárias a correta consecuçäo de suas atuais finalidades e missöes