The term cyclotryptophans is proposed in this review to describe alkaloids containing the 1,
2, 3, 3a, 8, 8a-hexahydropyrrolo [2, 3-blindole ring system. The cyclotryptophans are …

The sarpagine alkaloids have been reviewed only twice previously in “The Alkaloids” series
(1, 2). As both of these articles appeared in the sixties, they are relatively obsolete and the …

We describe the synthesis of (+)-aspidofractinine, the enantiomer of a naturally occurring
alkaloid of the kopsane family. Key features of the synthesis include a stereospecific cyanate …

The highly convergent stereocontrolled total synthesis of (−)-vincamajinine (7),(−)-11-
methoxy-17-epivincamajine (9), and the oxygen-bridged (+)-dehydrovoachalotine (22) are …

Publisher Summary This chapter discusses isolation of new monomeric Aspidosperma
alkaloids and those of Melodinus, Tabernaemontana, and Ochrosia. This is followed by …

Publisher Summary This chapter discusses an area of indole alkaloids, which has been
neglected in the series for over 30 years—namely, the ajmaline group of alkaloids, where …

Eleven alkaloids have been isolated from Alstonia quaternata. Three of them, namely 11-
methoxy-epi-3α-yohimbine, 10, 11-dimethoxy-picrinine designated quaternine, and 19, 20 …

The indole alkaloids of the sarpagine-ajmaline type comprise one of the largest groups of
structurally related indolic natural products: 45 com-pounds of the sarpagine type, 53 of the …

ALCALO’I’DES D’ALSTONIA VITIENSIS VAR. NOVO EBUDICA MONACHINO Page 1
Phytochemistry, 1975, Vol. 14, pp. 1637-1639. Pergamon Press. Printed in England …

Vinorine synthase, a key enzyme in the formation of the Rauwolfia alkaloid ajmaline and its
derivatives, has been isolated from Rauwolfia serpentina cell suspension cultures. The new …