The dipolar cycloaddition reactivity of N-(1-naphthy1)-1,4- benzoquinoneimine N-oxide and N-phenyl-1,4- naphthoquinoneimine Noxide are investigated, The latter gives the expected adducts with common dipolarophiles such as acrylonitryle, methyl methacrylate, dimethylacetylene dicarboxylate and N-phenylmaleimide. The reactivity of the former nitrone is found to be minimal. It undergoes, how...

Guanine 7一N-oxide was shown to have synergistic activity in combillation with neplanocin Aagainst a rhabdovirus, infectious hematopoietic necrosis virus (IHNV), as reported previ ously. We examined further the antiviral activity of guanine 7-N-oxide ill comblnation with other nucleoside antibiotics against IHNV. Synergism was seen between guanille 7-N-oxide and D-eritadenine or cordycepin.16s c...

background: nitrous oxide (n 2 o) is the oldest anesthetic in routine clinical use and its occupational exposure is under regulation by many countries. as studies are lacking to demonstrate the status of nitrous oxide levels in operating and recovery rooms of iranian hospitals, we aimed to study its level in teaching hospitals of tehran university of medical sciences. methods: during a 6-month ...

exogenous nitric oxide donors such as deta nonoate, spontaneously release nitric oxide. this study aimed to investigate the effect of deta nonoate as a nitric oxide releasing drug on the rate of collagen synthesis during the impaired wound healing in a rat model of diabetes. twelve male sprague–dawley rats were transferred into separate metabolic cages. nine days before wounding, the rats were ...