Conodirinines A and B, Novel Vobasine‐Iboga Bisindoles Incorporating an Additional Tetrahydro‐1,3‐oxazine Unit on the Vobasinyl Moiety

Conodirinines A and B, Novel Vobasine‐Iboga Bisindoles Incorporating an Additional Tetrahydro‐1,3‐oxazine Unit on the Vobasinyl Moiety New Bisindole Alkaloids from Tabernaemontana corymbosa New Bisindole Alkaloids from <i>Tabernaemontana </i><i>corymbosa</i> 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 Conodiparines A-D, new bisindoles from Tabernaemontana. Reversal of vincristine-resistance with cultured cells New Tabernamine Derivatives from Tabernaemontana Conodiparines A-D, new bisindoles from Tabernaemontana. Reversal of vincristine-resistance with cultured cells Vobatensines A–F, Cytotoxic Iboga-Vobasine Bisindoles from <i>Tabernaemontana corymbosa</i>