6-Methyl-2-phenyl-7H-Oxazolo [3,2-b] [1,2,4] triazine (1) undersent ting transformation on treatment with ammonia and primary amines to afford the corresponding imidazol [1,2-b][1,2,4] triazine (2). Treatment of (1) with hydrazine hydrate gave the corresponding 3-aryl-4H-1,2,4- triazino [4,3-b][1,2,4] triazin-8 (1H)-one (3).

und 5-Joduracil wurde bei 260 und 280 m//, von Cytosin bei 265 und 280 m/u, von Naphthoimidazol bei 230 und 240 m/*, von 5.6-Dimethylbenzimidazol bei 245 und 260 m/ii, von 6-Azauracil bei 250 und 280 mju und von 8-Azaguanin bei 255 und 275 m/u verfolgt. Eine Inkubationsdauer von 60 Min. reicht im allgemeinen vollständig, um einen deutlichen Effekt zu erhalten. Bei längerer Inkubation (3 Stdn.) ...

Suzuki cross coupling reaction is one of the most famous organic reactions 20th century’s chemistry. It deemed as in field a very effective method for making carbon–carbon bonds. has been extensively utilized synthesis many carbon molecules including complex ones.Syntheses 2-diethylamino-4H-7-(Het) aryl pyrido [1,2-a] [1,3,5] triazin-4-ones are currently under investigation order to obtain grea...

Potassium 8-R(1)-9-R(2)-10-R(3)-3-R-2-oxo-2H-[1,2,4]triazino[2,3-c]quinazoline-6-thiolates 2.1-2.26 were synthesized via cyclocondensation of 6-R-3-(3-R(1)-4-R(2)-5-R(3)-aminophenyl)-1,2,4-triazin-5-ones 1.1-1.26 with carbon disulfide, potassium hydroxide, and ethanol or with potassium O-ethyl dithiocarbonate in 2-propanol. The corresponding thiones 3.1-3.26 were obtained by treatment of 2.1-2....

O R IG IN A L A R T IC L E Julio Elito Junior Luiz Camano Unruptured tubal pregnancy: different treatments for early and late diagnosis Department of Obstetrics, Universidade Federal de São Paulo — Escola Paulista de Medicina, São Paulo, Brazil CONTEXT AND OBJECTIVE: There is evidence that ectopic pregnancies present different behavioral patterns. These distinct evolutions of ectopic pregnancie...

O R IG IN A L A R T IC L E Ursula Rohr Sgarbieri

O R IG IN A L A R T IC L E Eddie Fernando Candido Murta Guilherme Carvalho Freire Daniel Capucci Fabri Renato Humberto Fabri Could elective cesarean sections infl uence the birth weight of full-term infants? Discipline of Gynecology and Obstetrics, Universidade Federal do Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil INTRODUCTION Increasing cesarean section rates are a worldwide pheno...

Physiotherapeutic conduct in amyotrophic lateral sclerosis Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil Andreza Martinez Pozza Milene Karenine Delamura

A novel series of 7,7-diphenyl-1,2-dihydroimidazo[2,1-c][1,2,4]triazin-6(7H)-one 6a-h, were easily prepared via reactions of novel 2-hydrazinyl-4,4-diphenyl-1H-imidazol-5(4H)-one (2) with hydrazonoyl halides 3a-h. In addition, we also examined the reaction of compound 2 with commercially available active methylene compounds to afford new pyrazoles containing an imidazolone moiety, expected to b...