Stereo-controlled synthesis of the heteroyohimbine alkaloids, (–)-ajmalicine and (–)-tetrahydroalstonine, has been developed starting from diethyl L-tartrate by employing the intramolecular hetero-Diels–Alder reaction as the key step.
No takes yet. Share an insight, caveat, or question.
Takano et al. (1988) studied this question.