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. Author manuscript; available in PMC: 2016 Aug 7.
Published in final edited form as: J Am Chem Soc. 2015 Apr 20;137(16):5542–5548. doi: 10.1021/jacs.5b01938

Scheme 1.

Scheme 1

Synthesis of water-soluble EALA-cryptophane (WEC): a. 1 (1 eq), 2 (1 eq), CuSO4 (1 eq), TBTA (5 eq), 2,6-lutidine (1 eq), NaAsc (10 eq), 12 h; b. 3 (crude), 4 (10 eq), CuSO4 (1 eq), TBTA (5 eq), 2,6-lutidine (1 eq), NaAsc (10 eq), 12 h.