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T Sunami

Publications and source records attributed to T Sunami.

23 records · Page 2Linked to original sources

The role of the corpus callosum in interhemispheric propagation of iron-induced epileptogenic activity in the rat.

In iron-induced epilepsy, partial section of the corpus callosum resulted in a decrease in rats showing dominant spike activity on the side of secondary focus and an increase in rats showing almost equal spike activity on the sides of primary and secondary focus in electrocorticograms (ECoGs). Changes in ECoG spike frequencies caused by sectioning the corpus callosum included an increase in unilateral spikes on the side of primary focus, a decrease in unilateral spikes on the side of secondary focus, and an increase in bilateral spikes appearing almost synchronously on both sides.

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Diazepines. 5. Synthesis and biological action of 6-phenyl-4H-pyrrolo[1,2-a][1,4]benzodiazepines.

A series of 6-phenyl-4H-pyrrolo[1,2-a][1,4]benzodiazepines (2) has been prepared with 2-phthalimidomethylfurans (12) and 1-phthalimidoalkane-2,5-diones (15) or 2,5-dimethoxy-2-phthalimidomethyltetrahydrofurans (16) as the key intermediates and subsequently evaluated for CNS activity. The structure-activity data generated indicate that, in general, introduction of the methyl and/or ethyl group(s) in the pyrrole ring and a chlorine atom at the ortho position of the 6-phenyl group increases the activity and that substitution of the above chlorine atom for a fluorine atom decreases the activity. 8-Chloro-6-(2-chlorophenyl)-1,3-dimethyl-4H-pyrrolo[,2-a][1,4]benzodiazepine (2p), the most potent among the compounds synthesized, was equipotent in taming and sedative activities to diazepam. The acute LD50 of 2p in mice was larger than 3000 mg/kg po.

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