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Parasubindoles A–G, Seven Eremophilanyl Indoles from the Whole Plant of Parasenecio albus
journal contribution
posted on 2018-09-10, 00:00 authored by Ming Zhou, Jia Zhou, Junjun Liu, Jing-Jing Liang, Xiao-Gang Peng, Fang-Fang Duan, Han-Li RuanParasubindoles
A–G (1–7), seven eremophilanyl
indoles with an unprecedented 12H-cyclopentane[b]naphthalenespiro-1,3′-indole
skeleton, were isolated from the whole plant of Parasenecio
albus. Their structures with absolute configurations were
elucidated by spectroscopic methods, single-crystal X-ray diffraction,
and ECD analyses. Plausible biosynthetic pathways of 1–7 were postulated.