A Short, Protecting Group-Free Total Synthesis of Bruceollines D, E, and J
作者:Justin M. Lopchuk、Ilene L. Green、Jeanese C. Badenock、Gordon W. Gribble
DOI:10.1021/ol402042f
日期:2013.9.6
short, protecting group-free totalsynthesis of bruceollines D, E, and J has been achieved. The enantioselective reduction of bruceolline E with β-chlorodiisopinocampheylborane delivers both the natural and unnaturalenantiomers of bruceolline J in excellent yields and enantioselectivities. Reduction with baker’s yeast and sucrose was shown to provide the unnaturalenantiomer of bruceolline J in 98% ee
作者:Jason A. Jordan、Gordon W. Gribble、Jeanese C. Badenock
DOI:10.1016/j.tetlet.2011.10.023
日期:2011.12
An efficient synthesis of bruceolline E was completed in three steps from the known ethyl indole-l-carboxylate (9d) in 60% overall yield, via a tandem acylation/Nazarov cyclization with 3,3-dimethyl acrylic acid followed by selenium dioxide oxidation to install the alpha-diketone functionality. (C) 2011 Elsevier Ltd. All rights reserved.
Synthesis of cyclopent[b]indolones
作者:Jan Bergman、Lennart Venemalm、Adolf Gogoll
DOI:10.1016/s0040-4020(01)87931-x
日期:1990.1
BERGMAN, JAN;VENEMALM, LENNART, TETRAHEDRON LETT., 28,(1987) N 32, 3741-3744