期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 72, 期 19, 页码 7106-7115出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo070774z
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[GRAPHICS] The preparation of polyfunctional aryl azides by the reaction of aryl triazenes with NaN3 in the presence of KHSO4 or BF3 center dot OEt2/TFA (trifluoroacetic acid) has been described. A variety of functional groups (halides, esters, ketones, nitriles, aldehydes, and boronic esters) are tolerated under the Lewis acidic conditions. By using this methodology, the potent antitumor agents, ellipticine and 9-methoxyellipticine, have been synthesized. In addition, isoellipticine and a related derivative, 7-carbethoxyisoellipticine, were also prepared.
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