Fig. 8. 1H in Piperazine-2,5-dione derivatives and an α-pyrone polyketide from Penicillium griseofulvum and their immunosuppression activity

Fig. 8. 1H NMR Δδ values in ppm for the bis-S- and R-MTPA esters of 5 in S-R Methanol-d4.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 5, DOI: 10.1016/j.phytochem.2021.112708, http://zenodo.org/record/825870