Two new steroidal alkaloids, veraussines A (1) and B (2) were isolated from the roots and rhizomes of Veratrum nigrum var. ussuriense. Their structures were determined as N-(ethoxycarbonyl)- 1 α,2β,3α, 15α-tetrahydroxy-5fl-jervanin- 12-en- 11 -one (1) and N-(methoxycarbonyl)-1α,2β,3α,15α-tetrahydroxy-5/3-jervanin-12-en-1 l-one (2) by spectroscopic analysis.
Xue Feng Zhou Zhi Gang Gao Xu Ran Han Wei Jie Zhao Shi Sheng Wang