From leaves, roots, stalks and seeds of Aucuba japonica Thunb., Cornaceae; also occurs in 75 different plants: Paris, Chaslot, Ann. Pharm. Fr. 13, 648 (1955). Isoln: Trim, Hill, Biochem. J. 50, 310 (1952); Rombouts, Links, Experientia 12, 78 (1956). Structure: Haegele et al., Tetrahedron Lett. 1961, 110; Birch et al., J. Chem. Soc. 1961, 5194. Abs config: A. Bianco et al., Gazz. Chim. Ital. 106, 725 (1976). Brief review of structural studies: J. M. Bobbitt, K.-P. Segebarth, “The Iridoid Glycosides and Similar Substances” in Cyclopentanoid Terpene Derivatives, W. I. Taylor, A. R. Battersby, Eds. (Marcel Dekker, New York, 1969) pp 25-31.