The Isolation and Synthesis of E-24-Ethylidene-5α-lanost-8-en-3β-yl Acetate

Authors:
  • SSS. Safe
    S. Safe
  • LSL. M. Safe
    L. M. Safe
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Abstract
Extraction of the fungus Mucorrouxii gave small amounts of a 32 carbon triterpene (M+ 454). Spectroscopic studies suggested a lanosterol ring skeleton with a 24-ethylidene group introduced into the side chain. The structure was confirmed by synthesis and shown to be E-24-ethylidene-5α-lanost-8-en-3β-yl acetate.