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Merck

New polyoxypregnane glycosides from the roots of Marsdenia tenacissima.

Steroids (2014-12-03)
Xu Pang, Li-Ping Kang, He-Shui Yu, Yang Zhao, Li-Feng Han, Jie Zhang, Cheng-Qi Xiong, Li-Xia Zhang, Li-Yan Yu, Bai-Ping Ma
摘要

For the first time, a systematic phytochemical study was performed on the roots of Marsdenia tenacissima. Finally, sixteen new polyoxypregnane glycosides, marstenacissides A1-A7 (1-7) and marstenacissides B1-B9 (8-16), were isolated from M. tenacissima roots. The structures of these new compounds were established by various spectroscopic techniques, including 1D and 2D NMR spectroscopy and mass spectrometry.

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Sigma-Aldrich
吡啶-d5, ≥99.5 atom % D
Sigma-Aldrich
吡啶-d5, ≥99.5 atom % D, contains 0.03 % (v/v) TMS
Sigma-Aldrich
吡啶-d5, "100%", ≥99.96 atom % D