Tricyclic benzodiazepine derivatives ("A") bearing a hydroxylower alkyl substituent in the 1-position and a heterocyclic ring joined between positions 4 and 5 of the benzodiazepine moiety are described. The heterocyclic ring will contain the nitrogen atom appearing at position 4 of the benzodiazepine ring as well as the hetero atom, which may be either oxygen or nitrogen, attached to the carbon atom at the 5-position of the benzodiazepine ring. "A" bearing an oxygen atom in the new heterocyclic ring may be formed from the corresponding 4,5-unsaturated benzodiazepines by treatment with an epoxide compound in the presence of an acid catalyst. "A" bearing either a nitrogen or an oxygen atom in the new heterocyclic ring may be prepared by cyclization of the corresponding open compound. "A" are useful as sedative, muscle relaxant and anti-convulsant agents.
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三环苯二氮平衍
生物(“A”),其在1位带有羟基较低烷基取代基,并在苯二氮平骨架的4和5位之间连接有杂环环。杂环环将包含出现在苯二氮平环4位的氮原子,以及连接在苯二氮平环5位碳原子上的杂原子,可以是氧原子或氮原子。“A”在新的杂环环中带有氧原子,可以通过在酸催化剂存在下用环氧化合物处理相应的4,5-不饱和苯二氮平制备而成。在新的杂环环中带有氮原子或氧原子的“A”可以通过相应的开放化合物的环化制备而成。“A”可用作镇静剂、肌肉松弛剂和抗癫痫药物。