Skip to main content
. Author manuscript; available in PMC: 2008 Feb 1.
Published in final edited form as: Bioorg Med Chem. 2006 Nov 10;15(3):1298–1310. doi: 10.1016/j.bmc.2006.11.010

Scheme 2a.

Scheme 2a

a Reagents and conditions: (a) methyl thioglycolate, TEA, pyridine; then KOH; (b) DDQ; (c) Raney Nickel; (d) LiOH; (e) (COCl)2; then NaN3; then toluene (reflux); then AlCl3; (f) HBr, AcOH; (g) BH3·THF.