Construction of the Key Amino Alcohol Moiety of the Cinchona Alkaloids
作者:Yuichi Kobayashi、Yuuya Motoyama
DOI:10.1055/s-2006-950435
日期:2006.9
An N-Teoc [CO2(CH2)2TMS] protected form of the amino alcohol moiety found in the cinchona alkaloids was constructed by Curtius rearrangement followed by reaction of the isocyanate intermediate with TMS(CH2)2OH in one pot. Deprotection of the N-Teoc protective group and subsequent piperidine ring formation were easily accomplished with CsF in DMF at 110 °C in one pot to afford model compounds of the alkaloids.