Total Synthesis of (±)-Cytisine
Organic Letters2000Vol. 2(26), pp. 4201–4204
Citations Over TimeTop 16% of 2000 papers
Abstract
[reaction:see text] The nicotine partial agonist cytisine was prepared in five steps featuring an "in situ" Stille or Suzuki biaryl pyridine coupling. Differentiation of the pyridyl rings was accomplished via selective benzylation and then reduction of a pyridinium ring. The penultimate diazabicyclo[3.3.1]nonane intermediate was obtained with high diastereoselectivity. A similar sequence has been employed for the synthesis of novel derivative 9-methoxycytisine.
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