A one-pot, five-component strategy toward the synthesis of new indole substituted pyrrolidine and pyrrolizidine heterocycles through 1,3-dipolar cycloaddition reactions using ninhydrin, 1,2-phenylenediamine, amino acids, 3-cyanoacetyl indoles and aryl aldehydes is described. The features of this procedure were characterized by the mild reaction conditions, high yields, one-pot procedure, and operational simplicity.

中文翻译：

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一锅五组分1,3-偶极环加成反应：螺吡咯烷和螺吡咯烷衍生物的简便合成

描述了一种通过使用茚三酮，1,2-苯二胺，氨基酸，3-氰基乙酰基吲哚和芳基醛通过1,3-偶极环加成反应合成新的吲哚取代的吡咯烷和吡咯烷环杂环的一锅五组分策略。该方法的特点是反应条件温和，收率高，一锅法操作简单。