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”),其中在1位上带有羟基较低烷基取代基,并且在苯二氮平骨架的4和5位之间连接了一个杂环环。杂环环将包含出现在苯二氮平环的4位的氮原子以及连接到苯二氮平环5位的碳原子上的杂原子,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的存在下用环氧化合物处理相应的4,5-不饱和苯二氮平化合物来形成。“A”在新的杂环环中带有氮原子或氧原子可以通过相应的开放化合物的环化制备。“A”可用作镇静剂、肌肉松弛剂和抗惊厥剂。