[reaction: see text] N(4)-Hydroxy-1,4-benzodiazepines were synthesized in a single step from synthetically versatile acylnitroso-derived hetero-Diels-Alder cycloadducts. The efficiency of this transformation was found to be dependent on the NH pK(a) of the cycloadduct sulfonamide.
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| http://dx.doi.org/10.1021/ol017036w | DOI Listing |
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