Acylperoxylated and seco-mexicanolides from stems of Khaya anthotheca.
The stems of Khaya anthotheca yielded two new limonoids, which were identified on the basis of spectroscopic analysis as 1alpha,8alpha-oxido-3beta-acetoxy-2alpha-acylperoxy-1alpha,14alpha-dihydroxy-[3.3.1(10,2)]-bicyclomeliac-7,19-olide (3) and 3-acetoxy-8,14-dien-8,30-seco-khayalactone (4). Methyl 1alpha,2beta,3alpha,6,8alpha,14beta-hexahydroxy-[4.2.1(10,30).1(1,4)]-tricyclomeliac-7-oate, scopoletin, and 3-O-beta-D-glucopyranosylsitosterol were also isolated. The limonoids were of little value to clarify the basis of the nonresistance against Hypsipyla grandella.
Ferreira
Izabel C Piloto
IC
Departamento de Química, Universidade Federal de São Carlos, Caixa postal 676, 13565-905, São Carlos-SP, Brazil.
Cortez
Diógenes A Garcia
DA
das G F da Silva
M Fátima
MF
Fo
Edson Rodrigues
ER
Vieira
Paulo C
PC
Fernandes
João B
JB
D001938:Brazil; D036701:Limonins / Q000737:chemistry / Q000302:isolation & purification*; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular
D036701:Limonins