Isocyanides are the “Jekyll and Hyde” of organic chemistry allowing for extremely interesting transformations that are not only extremely odorous but also noxious. Therefore, an isocyanide-less isocyanide-based multicomponent reaction (IMCR) has been developed, and this protocol is expected to replace many of the old procedures in the future not only in IMCR but in other areas of organic chemistry as well.

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Employing a click chemistry approach we have synthesized a novel triazole-linked cationic porphyrin-β-carboline conjugate which exhibited remarkable photocytotoxicity against the A549 cancer cell line (IC(50) = 60 nM).

A Cu(i)-catalyzed azide-alkyne cycloaddition reaction (CuAAC) has been utilized to prepare novel triazole-linked cationic porphyrin-psoralen conjugates that exhibited significant photocytotoxicity against A549 cancer cells (IC50 = 84 nM).

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