Conulosins (A and B): Novel Norsesterterpene Acids from an Australian Marine Sponge, Latrunculia Conulosa

Abstract
Two Novel Tricyclic Norsesterterpene Acids, Conulosin-A (4) And Conulosin-B (5), Have Been Isolated From An Australian Marine Sponge, Latrunculia Conulosa. Both Conulosin-A (4) And Conulosin-B (5) Were Unstable And Were Characterised As Their Methyl And Ethyl Esters Respectively.