NMR evidence for an NH+ …OC intramolecular hydrogen bond in 2-alkyl-3-morpholinopropiophenones—structure of a new elevated high density lipoprotein agent in solution
作者:Nicole Cotelle、Philippe Cotelle
DOI:10.1002/mrc.1260291106
日期:1991.11
hydrochloride (2a) (a new elevated high density lipoproteins agent) and related compounds have been studied by NMR spectroscopy. Compound 2a exhibits an intramolecular hydrogen bond between the NH+ and CO bonds in solvents with low nucleophilicity. These results are confirmed by IR spectroscopy in solution.
7-[2-(4-morpholinomethyl)butanoyl]-4-methyl-2H-1, 4-benzoxazin-3 (4H)-one hydrochloride (2a)(一种新的高密度脂蛋白升高剂)和相关化合物已被研究通过核磁共振光谱。化合物 2a 在低亲核性溶剂中的 NH+ 和 CO 键之间显示出分子内氢键。这些结果由溶液中的红外光谱证实。