Abstract A novel compound, radianthin, with phytotoxic activity was isolated from liquid cultures of Alternaria helianthi and identified as a pyrone related to radicinin. A second metabolite was identified as radicinin itself while deoxyradicinol is described for the first time as a natural product.
                                    摘要 从 Alternaria helianthi 的液体培养物中分离出一种具有植物毒性活性的新型化合物 radianthin,并被鉴定为与 radicinin 相关的
吡喃酮。第二种代谢物被鉴定为 radicinin 本身,而 deoxyradicinol 首次被描述为
天然产物。