R. incisa contained C27-C29 steroidal 4,7,22-triene-3,6-diones along with major amts. of 5α,8α-epidioxy-Δ6 sterols. The structures of the hitherto undescribed steroidal 4,7-diene-3,6-diketones were proven by the synthesis of 4,7,22-ergostatriene-3,6-dione.
Steroids from sponges: occurrence of steroidal Δ4,7-3,6-diketones in the marine sponge Raphidostila incisa
RICCIO, Raffaele
1978-01-01
Abstract
R. incisa contained C27-C29 steroidal 4,7,22-triene-3,6-diones along with major amts. of 5α,8α-epidioxy-Δ6 sterols. The structures of the hitherto undescribed steroidal 4,7-diene-3,6-diketones were proven by the synthesis of 4,7,22-ergostatriene-3,6-dione.File in questo prodotto:
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