Chiral Tetraazamacrocycles Having Four Pendant-Arms
摘要:
chiral tetraazamacrocycle 9 having four pendant-arms was synthesized by repeating ring opening of an Ns-aziridine with secondary amines, followed by macrocyclization. The structure of 9 has been determined by single crystal X-ray diffraction analysis and NMR studies. Sugar-hybrid molecules 12a-12f were synthesized based on the scaffold 9. NMR study showed that 12a-12f keep the similar conformation as 9 in solution.
Synthesis of chiral polyazamacrocycles of variable ring size
作者:Seiji Kamioka、Sakae Sugiyama、Takashi Takahashi、Takayuki Doi
DOI:10.1039/c001228a
日期:——
Synthesis and structure elucidation of opticallyactive tri-, tetra-, and penta-azamacrocycles having 4-methoxyphenyl pendants are described. Regioselective ring opening of a nosylaziridine with secondary benzyl amines was repeatedly performed to afford the cyclization precursors. Intramolecular N-alkylation of N-(ω-haloalkyl) nosylamide provided tri-, tetra-, and penta-azamacrocycles. On the basis
Chiral Tetraazamacrocycles Having Four Pendant-Arms
作者:Seiji Kamioka、Takashi Takahashi、Susumu Kawauchi、Hiroaki Adachi、Yusuke Mori、Kotaro Fujii、Hidehiro Uekusa、Takayuki Doi
DOI:10.1021/ol9005954
日期:2009.6.4
chiral tetraazamacrocycle 9 having four pendant-arms was synthesized by repeating ring opening of an Ns-aziridine with secondary amines, followed by macrocyclization. The structure of 9 has been determined by single crystal X-ray diffraction analysis and NMR studies. Sugar-hybrid molecules 12a-12f were synthesized based on the scaffold 9. NMR study showed that 12a-12f keep the similar conformation as 9 in solution.