作者:Gerrit Jürjens、Andreas Kirschning
DOI:10.1021/ol5011278
日期:2014.6.6
The synthesis of a new ansamycin macrolactam derivative that contains an ansa chain based on ansamitocin and an aromatic core related to geldanamycin is reported. The selective introduction of the cyclic carbamoyl group at C7 and C9 relies on a biotransformation using a mutant strain of S. hygroscopicus, the geldanamycin producer. The ansamycin hybrid forms atropisomers that differ in their antiproliferative
报道了新的安沙霉素大内酰胺衍生物的合成,该衍生物含有基于安沙霉素的ansa链和与格尔德霉素有关的芳族核。在C7和C9处选择性引入环状氨基甲酰基基团依赖于使用格尔德霉素生产商hygroscopicus的突变菌株进行的生物转化。安沙霉素杂化体形成阻转异构体,其对癌细胞的抗增殖活性不同。