Tetrahedron Letters p. 147 - 150 (1987)
Update date:2022-09-26
Topics:
Bell, Russel A.
Hunter, Howard N.
N6',N9-Octamethylenepurine cyclophane, 1, has been synthesized by intramolecular cyclization.Its pmr spectrum shows all 16 methylene protons to be resolved, their chemical shifts ranging from -0.6 to +4.8 ppm.
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