Phytochemical investigation of the fungus Monascus ruber led to the isolation of one new alkaloid derivative, namely ruberpyrrole (1). The structures were established by extensive spectroscopic characterization and the reported data.

中文翻译：

---

来自红曲霉的新型吡咯化合物

真菌红曲霉的植物化学研究导致分离出一种新的生物碱衍生物，即 ruberpyrrole (1)。这些结构是通过广泛的光谱表征和报告的数据建立的。