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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Drug Metab Dispos. 2008 May 14;36(8):1594–1605. doi: 10.1124/dmd.108.020552

Scheme 1. Scheme for the synthesis of pure curcuminoids.

Scheme 1

i) Boric anhydride; ii) benzaldehydes 2a-c, tributylborate, EtOAc; 100°C; iii) n-BuNH2, 85°C; iv) 0.4N HCl, 60°C.