Chemical Constituents of Tectus maximus Koch, 1844

Two previously unreported compounds (1 and 2) together with eight known compounds (3-10) were isolated from the methanol extract of sea snail Tectus maximus Koch, 1844. Their chemical structures were determined to be 6-acetoxy-deoxyinosine (1), 6-acetoxy-inosine (2), deoxyinosine (3), inosine (4), adenosine (5), deoxyadenosine (6), deoxyuridine (7), thymidine (8), glycerol arachidonate (9), and arachidonic acid (10) on the basis of HR-ESI-MS and NMR spectroscopic analyses. This is the first report of those compounds from the genus Tectus.