Jinfang Zhang, B. Lou, H. Saneii
2004
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Journal
Molecular Diversity
Abstract
A method utilizing polymer-bound 4-(bromomethyl)-3-nitrobenzoic acid as a key precursor leading to 1,4-benzodiazepin-2,3-dionescaffold is described. It involves afour-step sequence including nucleophilic displacement,acylation, simultaneous reduction-cyclization and alkylation,providing rapid access to the title compounds in excellent yieldand purity.