Fig. 1 in Piperazine-2,5-dione derivatives and an α-pyrone polyketide from Penicillium griseofulvum and their immunosuppression activity

Fig. 1. Chemical structures of compounds 1–9.Published as part of Zang, Yi, Gong, Yihua, Chen, Xia, Wen, Huiling, Qi, Changxing, Chen, Chunmei, Liu, Junjun, Luo, Zengwei, Wang, Jianping, Zhu, Hucheng & Zhang, Yonghui, 2021, Piperazine-2,5-dione derivatives and an α-pyrone polyketide from Penicillium griseofulvum and their immunosuppression activity, pp. 1-8 in Phytochemistry (112708) 186 on page 2, DOI: 10.1016/j.phytochem.2021.112708, http://zenodo.org/record/825870