The structures of novel topoisomerase I inhibitors, topopyrones A, B, C and D were elucidated by spectral analysis of the chemical derivatives. These compounds are an anthraquinone type containing a fused 1, 4-pyrone moiety. Topopyrones A and B contain a chlorine atom, however C and D do not. It was suggested that topopyrones B and D are converted from topopyrones A and C, respectively by Wessely-Moser type rearrangement.
通过对
化学衍
生物的光谱分析,阐明了新型拓扑异构酶 I
抑制剂拓扑
吡喃酮 A、B、C 和 D 的结构。这些化合物属于
蒽醌类,含有一个融合的 1,4-
吡喃酮分子。拓扑
吡喃酮 A 和 B 含有一个
氯原子,但 C 和 D 不含
氯原子。据认为,拓扑
吡喃酮 B 和 D 分别是由拓扑
吡喃酮 A 和 C 通过 Wessely-Moser 型重排转化而来的。