Structure and Absolute Configuration of Helosides A and B, New Saponins from Chamaelirium luteum
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Investigation of Chamaelirium luteum roots led to the isolation of two new steroidal saponins, helosides A (1) and B (2), that contain a previously unreported aglycone, helogenin (3). Their structures and absolute configuration were elucidated through MS-MS, NMR, chemical degradation, and X-ray crystallography.
创建时间：
2016-02-23
