Inerminosides A and B, Two Novel Complex Iridoid Glycosides from Clerodendrum inerme

The leaves of Clerodendrum inerme have yielded two new iridoid biglycosides which have been characterized as 2'-O-5"-O-(8-hydroxy-2,6-dimethyl-2(E)-octenoyl)-beta-D-apiofuranosy l- mussaenosidic acid (inerminoside A) 1, and 2'-O-5"-O-(8-hydroxy-2,6-dimethyl-2(E),6(E)-octadienoyl)-beta-D- apiofuranosyl-8-epi-loganic acid (inerminoside B 2), respectively. Structure elucidation was carried out both chemically and spectroscopically.