Regiospecific cyclisation of 1,2,3,4-tetrahydro-1-methylene-2-nicotinoyl-β-carbolines: a synthesis of naucléfine
Abstract
The alkaloid naucléfine has been synthesised from 1,2,3,4-tetrahydro-1-methylene-2-nicotinoyl-β-carboline by the action of benzyl bromide, followed by debenzylation; the problem of isomer formation is avoided and the overall yield is 55%.
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