3α-Hydroxy-8β-Trinervita-1,11-Diene: A Novel Diterpene From Two Trinervitermes Species

Isolation and Structure of Eucosterol an

Isolation and Structure of Eucosterol and 16 β-Hydroxyeucosterol, Two Novel Spirocyclic Nortriterpenes, and of a New 24- Nor-5α-chola-8, 16-diene-23-oic Acid from Bulbs of Several Eucomis Species

✍ René Ziegler; Christoph Tamm 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 German ⚖ 883 KB

## Abstract Eucosterol and 16 β‐hydroxy‐eucosterol which have been isolated from several __Eucomis__ species have been shown to be (23__S__)‐17,23‐epoxy‐3β,31‐dihydroxy‐27‐nor‐5α‐lanost‐8‐ene‐15,24‐dione (**1**) and (23 __S__)‐17,23‐epoxy‐3β,16β,31‐trihydroxy‐27‐nor‐5α‐lanost‐8‐ene‐15,24‐dione (**2