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[摘要]:A "click and activate" strategy was designed and executed in a four-component, stepwise condensation that led to a trisubstituted triazolyl-pyridazinone library. This one-pot process included regioselective azide substitution at 2-substituted-4,5-dichloropyridazinones, followed by a Cu(l) catalyzed triazole formation which triggered subsequent nucleophilic substitution at the neighboring position to achieve three points of diversity. |
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