Benzothiopyranoindazoles, a new class of chromophore modified anthracenedione anticancer agents. Synthesis and activity against murine leukemias
作者:H. D. Hollis Showalter、Mario M. Angelo、Ellen M. Berman、Gerald D. Kanter、Daniel F. Ortwine、Suzanne G. Ross-Kesten、Anthony D. Sercel、William R. Turner、Leslie M. Werbel
DOI:10.1021/jm00403a009
日期:1988.8
with 8-OH and 9-OH most favorable, and (c) sulfide oxidation state at S-6. Besides having curative activity against the P388 line, the more active compounds were curative against murine B-16 melanoma in vivo. On the basis of their exceptional broad-spectrum in vivo anticancer activity, selected compounds in this series have been chosen for development toward clinical trials.
描述了苯并硫代吡喃并吲哚类化合物的合成,苯并硫代吡喃并吲哚类是与米托蒽醌有关的新型生色团修饰的蒽二酮。在该结构类别中,已设计出认为是蒽环类药物的心脏毒性负责的醌部分。苯并硫代吡喃并吲哚的合成是从所需的1-氯-4-硝基-9H-噻吨黄酮-9-前体通过多步序列进行的。与单烷基肼反应得到5-硝基苯并硫代吡喃并吲哚加合物,将其催化还原成相应的C-5苯胺中间体。用必需的X(CH2)nNR1R2(X = Cl,Br; R1,R2 = H,烷基,酰基; n = 2,3)进行7烷基化可提供目标“两臂”苯并硫代吡喃并吲哚或A环甲氧基和/或侧链酰基中间体 可以通过适当的脱保护方法将其转换为3。另外,某些目标化合物3是通过将7与适当官能化的甘氨酸前体在Schotten-Bauman或BOP氯化物缩合条件下反应合成的,以提供C-5酰氨基中间体,然后进行Red-Al还原和脱保护步骤。还描述了在C-5具有近端酰基氨基侧