Total Synthesis of 0231B, an Inhibitor of 3α-Hydroxysteroid Dehydrogenase Produced by<i>Streptomyces sp</i>. HKI0231
作者:Taichi KOMODA、Yoshihiko SHINODA、Shin-ichi NAKATSUKA
DOI:10.1271/bbb.67.659
日期:2003.1
benz[c,d]indol-3(1H)-one structure in their molecules. In our advanced studies on indole chemistry, we have developed an efficient synthetic method for benz[c,d]indol-3(1H)-one derivatives. We report here its application to the synthesis of 0231B in 10 steps (8.1% overall yield) from 6-methylindole 8 by introducing an acyl group into the 3-position of the indole nucleus, cyclization of the side chain
3α-羟基类固醇脱氢酶的新抑制剂0231A 1和0231B 2在其分子中具有独特的benz [c,d] indol-3(1H)-one结构。在我们对吲哚化学的高级研究中,我们已经开发了一种有效的苯并[c,d]吲哚-3(1H)-一衍生物的合成方法。我们在这里报告了其在10个步骤中从6-甲基吲哚8合成0231B的应用(总收率8.1%),方法是将酰基引入吲哚核的3位,将3位的侧链环化为4位和随后的苯基消除,以及共轭加成取代的苯基。