Iridoid glucosides from Wendlandia ligustroides (Boiss. &Hohen.) Blakelock

摘要

Eight iridoid glucosides were reported from the aerial parts of Wendlandia ligustroides. 10-deoxygeniposidic acid ( 1 ), 7-deoxygardoside ( 2 ), geniposidic acid ( 3 ), 7-deoxy-8-epi-loganic acid ( 4 ), deacetyl-daphylloside ( 5 ), scandoside methyl ester ( 6 ), 6 -O- methyl-deacetyl-daphylloside ( 7 ), 6 -O- methyl-scandoside methyl ester ( 8 ). Compounds 3 – 8 were isolated as a pure form while 1 and 2 as a mixture. The structures of the compounds 1 – 8 were established by spectroscopic methods including 1D-NMR ( 1 H NMR, 13 C NMR, DEPT-135), 2D-NMR (COSY, NOESY, HSQC, HMBC) and HRMS.