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. Author manuscript; available in PMC: 2016 May 2.
Published in final edited form as: Tetrahedron. 2014 Nov 8;71(22):3652–3665. doi: 10.1016/j.tet.2014.11.010

Figure 4.

Figure 4

Synthesis of ketone 9, oxidative coupling with indole (10), and attempts at forging the tetracyclic core of the hapalindole family.