Condensation of 14-bromodaunorubicin with thiols in methanol, in the presence of potassium carbonate, resulted in the formation of 14-thia analogues of the antitumor antibiotic adriamycin. However, similar condensation of N-(trifluoroacetyl)-14-iododaunorubicin with thiols invariably led to a redox reaction, with the formation of N-(trifluoroacetyl)daunorubicin and disulfides. Accordingly, N-(trifluoroacetyl)-14-bromodaunorubicin was used for reaction with thiols to yield thia analogues of the clinically active but non-DNA-binding adriamycin analogue N-(trifluoroacetyl)adriamycin 14-valerate (AD 32). Reaction of 14-bromoadunorubicin with alpha, omega-alkanedithiols gave bis(thiaadriamycin) analogues as potential difunctional intercalating agents. The aforementioned products, plus two related phenylselena derivatives, were examined for in vitro growth inhibition, in vivo antitumor activity, and, where appropriate, DNA binding. A number of agents, most notably 14-(carbethoxymethyl)-14-thiaadriamycin and N-(trifluoroacetyl)-14-phenyl-14-selenaadriamycin, were active against murine L1210 leukemia in vivo. Several of the amino glycoside unsubstituted 14-thiaadriamycin analogues exhibited DNA-binding properties equivalent to those of adriamycin.

中文翻译：

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阿霉素类似物。一些新型的14-硫代阿霉素的制备和生物学评价。

在碳酸钾存在下，甲醇中14-溴金红霉素与硫醇的缩合导致抗肿瘤抗生素阿霉素的14-硫杂类似物的形成。然而，N-（三氟乙酰基）-14-碘代柔红霉素与硫醇的类似缩合总是导致氧化还原反应，形成N-（三氟乙酰基）柔红霉素和二硫化物。因此，将N-（三氟乙酰基）-14-溴金红霉素用于与硫醇反应，以产生具有临床活性但不结合DNA的阿霉素类似物N-（三氟乙酰基）阿霉素14-戊酸酯（AD 32）的硫代类似物。14-溴阿霉素与α，ω-链烷二硫醇的反应产生了双（硫代阿霉素）类似物，作为潜在的双功能嵌入剂。上述产品，以及两种相关的苯基硒醚衍生物，检查了体外生长抑制，体内抗肿瘤活性，以及​​在适当情况下的DNA结合。许多试剂，其中最显着的是14-（乙氧甲氧基甲基）-14-硫代阿霉素和N-（三氟乙酰基）-14-苯基-14-硒代阿霉素，在体内对鼠L1210白血病具有活性。几种氨基糖苷未取代的14-硫代阿霉素类似物表现出与阿霉素相同的DNA结合特性。