| 3 | Four New Steroidal Alkaloids from the Roots of Sarcococca Vagans显示文摘Four new steroidal alkaloids, named sarcovagine A-D, were isolated from the roots of Sarcococca vagans. Their structures were determined as 20α -dimethylamino-2β,4β-dihydroxy-3β-tigloylamino-5α-pregnane (sarcovagine A, 1), 20α-dimethylamino-2α-hydroxy-4β-acetoxy-3β-tigloylamino-5α-pregnane (sarcovagine B, 2 ), 20α-dimethyltamino-4β-acetoxy-3β-tigloylamino-5α-pregnane(sarcovagine C, 3), 20α-dimethylamino-3-tigloylamin-5α-pregn-2(3)-en-4-one (sarcoagine D. 4), | Yu, SS Zou, ZM Zen, J Yu, DQ Cong, PZ | 1997 | Chinese Chemical Letters1997，8，6： | 0 |
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