Two known neo-clerodane diterpenoids, scutecyprol A (1) and scutalbin C (2), have been isolated from the acetone extract of the aerial parts of Scutellaria sieberi. The antifeedant activity of scutecyprol A (1), of its 15-oxo derivative (3), and of several halohydrins (4-9), synthesized starting from compounds 1 and 3, against Spodoptera littoralis have been determined and structure-antifeedant relationships are discussed.
ROSSELLI S, MAGGIO A, PIOZZI F, SIMMONDS M S J, BRUNO M (2004). Extremely potent antifeedant neoclerodane derivatives of scutecyprol A. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 52(26), 7867-7871 [10.1021/jf048532c].
Extremely potent antifeedant neoclerodane derivatives of scutecyprol A.
ROSSELLI, Sergio;MAGGIO, Antonella Maria;BRUNO, Maurizio
2004-01-01
Abstract
Two known neo-clerodane diterpenoids, scutecyprol A (1) and scutalbin C (2), have been isolated from the acetone extract of the aerial parts of Scutellaria sieberi. The antifeedant activity of scutecyprol A (1), of its 15-oxo derivative (3), and of several halohydrins (4-9), synthesized starting from compounds 1 and 3, against Spodoptera littoralis have been determined and structure-antifeedant relationships are discussed.
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