Résumé : A study of Aspidosperma verbascifolium has led to the isolation of four known dihydroindole alkaloids: kopsanone [I], kopsanol [II], 3'‐epikopsanol [III], 10‐oxo‐3'‐epikopsanol [IV] and a new natural product: Nα‐formylkopsanol [VII]. Copyright © 1969 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim