L. Micouin et al., SYNTHETIC APPLICATIONS OF 2-(1,3-DITHIAN-2-YL)INDOLES .5. ASYMMETRIC-SYNTHESIS OF DASYCARPIDONE-TYPE INDOLE ALKALOIDS, Tetrahedron letters, 36(10), 1995, pp. 1693-1696
Chiral tetracyclic dasycarpidone-type compounds (alpha R, IS, 5R)-4 an
d (alpha R, IR, 5S)-16 have been synthesized from 2-(1,3-dithian-2-yl)
indole 6 and (alpha droxy-alpha-phenylethyl)-Delta(3)-piperidein-2-one
8 in three steps, following the methodology that we described recentl
y.