Cytotoxic neviotane triterpene-type from the red sea sponge Siphonochalina siphonella

Background: Siphonochalina siphonella is a marine sponge collected from saudi Red Sea 
water and scare study from this region. Objective: To isolate the anticancer triterpenes with 
potent cytotoxicity from marine sponge, Siphonochalina siphonella and state the mode of 
action in cancer cell lines. Materials and Methods: The sponge material was collected, 
extracted with organic solvent, and fractionated on different adsorbents. The structure of the 
pure metabolites were elucidated employing different spectroscopic techniques including ...