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. Author manuscript; available in PMC: 2012 Jun 28.

Published in final edited form as: J Am Chem Soc. 2011 Jun 20;133(28):10768–10771. doi: 10.1021/ja204597k

Scheme 2 — Synthesis of Hydroxyindolenines (+)-17 and (+)-18.a

^a Conditions: (a) HBPin, [Ir(OMe)(cod)]₂ (5 mol%), 4,4'-di-^tBu-2,2'-bipyridine, CH₂Cl₂, 23 °C. (b) Ag₃PO₄, 15 (20 mol%), PhCH₃, H₂O, 23 °C. (c) (+)-((8,8-dichlorocamphoryl)sulfonyl)oxaziridine, CH₂Cl₂, −35→23 °C.