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. Author manuscript; available in PMC: 2013 Mar 28.
Published in final edited form as: Tetrahedron Lett. 2011 Dec 29;53(13):1539–1542. doi: 10.1016/j.tetlet.2011.12.063

Scheme 5.

Scheme 5

First attempt at a three step, one-pot synthesis of a C2 functionalized, orthogonally N,N′-protected piperazine 25.