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A short, easy way to prepare indole alkaloid (+) -geissoschizine (1) is described.Most of the several syntheses reported1-' for the indole alkaloid ( + ) - geissoschizine (1)' are long and tedious.1n this paper, we present a short and easy route.We recently described a stereoselective transformation of allylic alcohol( 2 ) to deformyl-z-geissoschizine (3) using dimethylacetamide dimethylacetal or trimethyl orthoacetate in the Claisen rearrangement (Scheme 1) .6
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Lounasmaa et al. (1992) studied this question.
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