Three new bitter principles, the des-4-methylated picrasane type quassinoids, javanicins H, I and J, were isolated from leaves of Picrasma javanica. The structures were determined by spectroscopic data and chemical evidence.
Three new bitter principles, the des-4-methylated picrasane type quassinoids, javanicins H, I and J, were isolated from leaves of Picrasma javanica. The structures were determined by spectroscopic data and chemical evidence.