ALLIN, S.M. ... et al., 2007. A new asymmetric synthesis of the anti-tumour alkaloid (R)-(+)-crispine A. Journal of organic chemistry, 72 (23), pp. 8972-8975
We report a novel, facile and asymmetric approach for the synthesis of the anti-tumour alkaloid (+)-crispine A via a highly diastereoselective N-acyliminium cyclization reaction as a key synthetic step.
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