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Note | Regular issue | Vol 55, No. 10, 2001, pp.1943-1949
Published online, 1st January, 1970
DOI: 10.3987/COM-01-9276
Cucubalactam and Brachystemin E, Two New Compounds from Caryophyllaceae

Yong-Xian Cheng, Jun Zhou,* Ning-Hua Tan, Yang Lu, Xu-Ying Liu, and Qi-Tai Zheng

*Laboratory of Phytochemistry, Kunming Institute of Botany, The Chinese Academy of Sciences, Heilongtan, Kunming 650204, China


A new pyrrolidone peroxide, named cucubalactam (1), and a new octacyclopeptide, named brachystemin E (2), have been isolated from Caryophyllaceae plants, Cucubalus baccifer and Brachystemma calycinum, respectively. Their structures were determined by spectral methods, especially by 1D and 2D NMR techniques. The stereochemistry of compound (2) was demonstrated by X-Ray crystallograph.