Philinopsis speciosa

B. striata, its secondary metabolic pattern, consisting of a series of uncommon polypropionates, is almost identical to that of its prey [36,37], On the contrary, if the mollusc, under maintenance in an aquarium, feeds on Haminoea navicula, it discharges [5] in the form of a yellow secretion two Haminoea metabolites, the haminols (8,9), structurally related to navenone-A (I), which possess alarm pheromone properties [38] for H. navicula. Studies on a third Aglajidae mollusc [39, 40], Philinopsis speciosa, led to the characterization of a 2-alkyl-pyridine, pulo upone (10), as a minor constituent co-occurring with two polypropionates closely related to the metabolites from the pair P. depicta-B. striata. 

Nakano, Y., Yoshida, W., and Scheuer, P. J., Pupukeamide, a linear tetrapeptide from a cephalaspidean mollusk Philinopsis speciosa, Tetrahedron Lett., 37, 8993, 1996. 

The sex attractant of the sea slug Navanax inermis contains pyridine bases, one of which is the 3-pyridyltetraenone (140) (H.L. Sleeper and W. Fenical, J.Amer.chem.Soc., 1977, 99, 2367). Another structure, perhaps of vegetable origin, is pulo upone (153) which has been isolated as a trace constituent of the Hawaiian mollusc Philinopsis speciosa (S.J. Coval et al., Tetrahedron Letters, 1985, 26, 5359). 

Pulo upone (110) was isolated from the Hawaiin mollusk Philinopsis speciosa, and its structure was determined using HRMS, UV, and one- and two-dimensional NMR [312]. Several syntheses of 110 have been reported which utilize a Diels-Alder reaction for formation... 

Kulolide, a 22-membered cyclodepsipeptide depsipeptides) isolated from the cepha-laspidean moUusk, Philinopsis speciosa collected off Oahu. Among the seven residues, L-3-phenyllactic add and (R)-2,2-dimethyl-3-hydroxy-7-octynoic add, are... 

Kimura, J., Takada, Y, Inayoshi, T, Nakao, Y, Goetz, G Yoshida, W.Y., and Scheuer, P,J, (2002) KulokekahUide-l, a cytotoxic depsipeptide from the cephalaspidean mollusk Philinopsis speciosa. J. Org. Chem., 67,1760-1767,... 

Other species of carnivorous cephalaspids, such as Philinopsis speciosa and Scaphander lignarius, and some species of herbivorous cephalaspids, such as Haminoe... 

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