New Bisindole Alkaloids from Tabernaemontana corymbosa

New Bisindole Alkaloids from Tabernaemontana corymbosa New Bisindole Alkaloids from <i>Tabernaemontana </i><i>corymbosa</i> Conodirinines A and B, Novel Vobasine‐Iboga Bisindoles Incorporating an Additional Tetrahydro‐1,3‐oxazine Unit on the Vobasinyl Moiety Vobasonidine and Vobatricine, Novel Bisindole Alkaloids from a Malayan Tabernaemontana Conodusarine, a New Biologically Active Bisindole Alkaloid from Tabernaemontana divaricata Ibogan, Aspidosperman, Vincamine, and Bisindole Alkaloids from a Malayan <i>Tabernaemontana corymbosa</i>: Iboga Alkaloids with C-20α Substitution Conodurine, conoduramine, and ervahanine derivatives from Tabernaemontana corymbosa Conodurine, conoduramine, and ervahanine derivatives from Tabernaemontana corymbosa Biologically Active Ibogan and Vallesamine Derivatives from Tabernaemontana divaricata Tabercorymines A and B, Two Vobasinyl–Ibogan-Type Bisindole Alkaloids from Tabernaemontana corymbosa