Monoterpenoids and Indole Alkaloids

Inouye, S. Ueda, Y. Aoki, and Y. Takeda, Tetrahedron Letters, 1969, 2351. 

Battersby et have shown that secologanin (36) [cf. (26)] is produced 

Closely related to secologanin is gentiopicroside (39). As expected, it incorporated only one tritium atom from [3R,4R- H]mevalonic acid, and none from the 

Famesol (alcohol from 6 n = 2) is an efficient precursor of ipomeamarone (45). A derivative of the 2-cis-isomer of famesol is, presumably, the immediate precursor of the furan ring of this terpenoid, and the ant metabolite dendrolasin 

Oshima, H. Imaseki, and I. Uritani, Agric. and Biol. Chem. (Japan), 1969, 33, 50 I. Oguni and I. Uritani, ilyid., 1970, 34, 156. 

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