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New neolignans from Spiraea formosana
Tian-Shung Wu1, Chia-Chan Hwang, Ping-Chung Kuo
1Department of Chemistry, National Cheng Kung University, Tainan, Taiwan. tswu@mail.ncku.edu.tw
Chemical & Pharmaceutical Bulletin
|October 7, 2004
Abstract:
Phytochemical investigation on the ethanol extract from the stems of Spiraea formosana has resulted in the isolation of four new neolignans, named spiraformin-A, -B, -C and -D (1-4), together with thirty five known compounds. Their structures were established primarily on the basis of 1D and 2D NMR spectral and chemical transformation methods.
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