Synthesis, structure and stereochemistry of quinoline alkaloids from Choisya ternata
作者:Derek R. Boyd、Narain D. Sharma、Pui L. Loke、John F. Malone、W. Colin McRoberts、John T. G. Hamilton
DOI:10.1039/b707576f
日期:——
values of all chiral quinolinealkaloids have been determined. One of the isolated alkaloids, 7-isopentenyloxy-gamma-fagarine, has been used as a precursor for the chemical asymmetric synthesis of the enantiopure alkaloids: evoxine, anhydroevoxine and evodine. The possible roles of oxygenase and other oxygen-atom-transfer enzymes, in the biosynthetic pathways of the C. ternata alkaloids, have been discussed
Acetylenchemie, 33. Mitt.: Synthese von 2-substituierten Dihydrofuro[2,3-b]chinolinen
作者:J. Reisch、P. Nordhaus
DOI:10.1007/bf00818167
日期:1994.2
The reaction of 3-iodo-4-methoxy-2(1H)-quinolinone (1) and 3-iodo-4,6,8-trimethoxy-2(1H)-quinolinone (2) with 2-methyl-3-butyn-2-ol under modified Heck-conditions gave the 2-substituted derivatives 2-(1-hydroxy-1-methylethyl)4-methoxyfuro[2,3-b]-quinoline (3) and 2-(1-hydroxy-1-methylethyl-4,6,8-trimethoxyfuro[2,3-b]-quinoline (4). By a subsequent hydrogenation-reaction with a homogeneous catalyst (PtO2/Rh2O3), the furoquinoline-derivatives yielded the dihytrofuro[2,3-b]quinolines, identified as 2-(1-hydroxy-1-methylethyl-4-methoxy-2,3-dihydrofuro[2,3-b]quinoline (5) (racemic platydesmine) and 2-(1-hydroxy-1-methylethyl)-4,6,8-trimethoxy-2,3-dihydrofuro[2,3-b]quinoline (6) (racemic precursor of O4-methylptelefolonium salt).
Gaston, John L.; Grundon, Michael F.; James, Kevin J., Journal of the Chemical Society. Perkin transactions I, 1980, p. 1136 - 1138
作者:Gaston, John L.、Grundon, Michael F.、James, Kevin J.