Ethyl 3(5)-formylpyrazole-5(3)-carboxylate, 2-nitrobenzyl bromide or 2-nitrobenzoyl chloride are the starting basic materials to prepare with a few reaction steps, pyrazolo[5,1-c][1,4]benzodiazepines bearing at position 2 a substituted propionic chain (7–9) or bearing at position 5 a carbonyl group (12). Compounds 7–9, 12 are to be considered aza analogs of the antitumor antibiotic antramycin.
3(5)-甲酰基
吡唑-5(3)-
羧酸乙酯,2-硝基苄基
溴或
2-硝基苯甲酰氯是通过几个反应步骤即可制备的起始基本原料,
吡唑并[5,1- c ] [1,4]在位置2带有取代的丙链(7-9)或在位置5带有羰基(12)的苯二氮卓类。化合物7-9,12被认为是抗肿瘤抗生素antramycin氮杂类似物。