A six-step synthesis of (S)-5-ethenyl-3-(1-methyl-2-pyrrolidinyl)pyridine (SIB-1508Y) from (S)-nicotine

  • Comins D
  • Smith E
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The anti-Parkinson's agent SIB-1508Y was prepared in six steps from (S)-nicotine in 20% overall yield. The strategy involves a regioselective formylation at C-5 of a 1,4-dihydronicotine intermediate. © 2005 Elsevier Ltd. All rights reserved.

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  • Daniel L. Comins

  • Emilie D. Smith

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