Laurencia poitei

Dactylol (1) is a sesquiterpene possessing an unusual /ra 5-5,8-fused ring system. It was first isolated from a Caribbean sea hare, Aplysia dactylomela and was later found in the red seaweed Laurencia poitei,... 

Laurencia, the diet of the marine molluscs. Examples of capnellane sesquiter-penoids isolated from the soft coral Capnella imbricata continue to emerge. The latest additions are the tetrol (674) and precapnelladiene (675). The latter is considered to be the bicyclic precursor of the tricyclic capnellane group, the simplest of which is A -capnellene (676). Closely related to the diene (675) is dactylol (677), which has been isolated both from the sea hare Aplysia dacty-lomela and from its dietary source, the red seaweed Laurentia poitei ... 

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