The reactions of 1-benzoyl-2,4-diphenyl-2,3-dihydro-1H-1,5-benzodiazepine with methyl 1-bromocycloalkanecarboxylates and zinc, followed by hydrolysis of the reaction mixtures, resulted in the formation of spiro-δ-lactams bearing a 2-(N-benzoylamino)phenyl substituent at the nitrogen atom. The product structures were confirmed by X-ray structural analysis, and a mechanism was proposed for the product formation.

中文翻译：

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1-苯甲酰基-2,4-二苯基-2,3-二氢-1 H -1,5-苯并二氮杂与脂环式Reformatsky试剂的反应

1-苯甲酰基-2,4-二苯基-2,3-二氢-1 H -1,5-苯并二氮杂与1-溴环烷羧酸甲酯和锌反应，然后水解反应混合物，形成螺环-在氮原子上带有2-（N-苯甲酰基氨基）苯基取代基的δ-内酰胺。通过X射线结构分析确认了产物结构，并提出了产物形成的机理。