The Journal of Organic Chemistry
Article
by direction methods and refined by a full matrix least-squares
technique based on F2, using SHELXL 97 program. All non-hydrogen
atoms were refined anisotropically and H atoms were located from
difference electron density maps. Crystal data: C25H34N6O6; Mr =
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514.58; Triclinic; space group P1; a = 8.2833(17) Å, b = 11.337(2) Å,
̅
c = 14.145(3) Å; α = 88.66(3)°; β = 84.99(3)°; γ = 80.94(3)°; V =
1306.6(5) Å3; Z = 2; T = 173(2) K; 11890 reflections collected, 5928
unique; R1 = 0.1392, wR2 = 0.2236 [I > 2σ(I)]; R1 = 0.2400, wR2 =
0.2740 (all data).
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ASSOCIATED CONTENT
* Supporting Information
■
S
1H NMR and 13C NMR spectra of new compounds. Studies on
the self-assemblies of 1n, 2n, heteroduplexes 1·3a and 1·3b.
Conformational study of 3. Competitive 1H NMR experiments
of 1, 2 and 3a. The X-ray crystallographic file (CIF) for 3b.
This material is available free of charge via the Internet at
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AUTHOR INFORMATION
Corresponding Author
■
Notes
The authors declare no competing financial interest.
ACKNOWLEDGMENTS
■
(9) Chu, W.-J.; Yang, Y.; Chen, C.-F. Org. Lett. 2010, 12, 3156−3159.
We thank the National Basic Research Program
(2011CB932501) and the National Natural Science Founda-
tion of China (91127009) for financial support.
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