Synthesis of 3-epistrophanthidin and 3-epistrophanthidol

Conclusions 3-Epistrophanthidin and 3-epistrophanthidol have been synthesized from strophanthidin and strophanthidol with yields of 10 and 40%, respectively. The substances synthesized proved to be identical with the new natural aglycones isolated from the seeds ofStrophanthus kombe Oliv.Khimiya Prirodnykh Soedinenii, Vol. 6, No. 1, pp. 57–60, 1970.