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. Author manuscript; available in PMC: 2014 Feb 18.
Published in final edited form as: Inorg Chem. 2012 Nov 5;52(4):1694–1700. doi: 10.1021/ic3017613

Scheme 1.

Scheme 1

Synthesis of alkyne-terminated DTTA ligands.

Reagents and conditions: (a) KHCO3, DMF, 0 °C - RT, 36 h, 60%; (b) HCOOH, 65 °C, 15 h, 89%; (c) DyCl3·6H2O, pyridine, 70 °C, 15 h, 87%.