Methods of synthesizing nicotine analogs and derivatives are described. In some embodiments the methods utilize an alkyl or aryl silyl-substituted nicotine analog intermediate. Intermediates useful for the synthesis of nicotine and nicotine analogs are also described.
A six-step synthesis of (S)-5-ethenyl-3-(1-methyl-2-pyrrolidinyl)pyridine (SIB-1508Y) from (S)-nicotine
作者:Daniel L. Comins、Emilie D. Smith
DOI:10.1016/j.tetlet.2005.12.085
日期:2006.2
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. (c) 2005 Elsevier Ltd. All rights reserved.
Synthesis of Nicotine Derivatives via Reductive Disilylation of (<i>S</i>)-Nicotine
作者:Emilie D. Smith、Florence C. Février、Daniel L. Comins
DOI:10.1021/ol052099q
日期:2006.1.1
variety of novel nicotinederivatives were prepared via reductive disilylation of (S)-nicotine. Treatment of nicotine with lithium powder and chlorotrimethylsilane afforded 1,4-bis(trimethylsilyl)-1,4-dihydronicotine in high yield. Addition of various carbonyl electrophiles and a catalytic amount of TBAF provided either C-5 substituted nicotines or 1,4-dihydronicotine derivatives.