A new spiroketal steroid from Gorgonella umbraculum.
A new spiroketal steroid (2) was isolated from the Indian Ocean gorgonian, Gorgonella umbraculum besides the known briarane diterpenoids, juncellin, umbraculides A and D. The new steroid was characterised as 22-acetoxy-3,25-dihydroxy-16-24,20-24-bisepoxy-(3beta, 16alpha, 20S, 22R, 24S)cholest-5-ene (2) by a study of its spectral data.
School of Chemistry, Andhra University, Visakhapatnam-530 003, India. anjaneyuluasr@yahoo.com
Ammanamanchi S R
AS
Anjaneyulu
Vadali Lakshmana
VL
Rao
Vedula Girija
VG
Sastry
D037421:Anthozoa / Q000737:chemistry*; D002782:Cholestenes / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy
C479401:22-acetoxy-3,25-dihydroxy-16-24,20-24-bisepoxycholest-5-ene; D002782:Cholestenes