期刊
MATERIALS
卷 14, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/ma14237175
关键词
API; quantum-chemical calculations; GIPAW; CASTEP; very fast MAS NMR; molecular dynamics
This study reports a structural investigation of AND-1184, including the differences in structural characteristics and dynamic behaviors between MBS and MBSHCl. Solid-state NMR study combined with quantum-chemical calculations successfully assigned all C-13 and most H-1 signals.
In this study, we report on a structural investigation of AND-1184, with the chemical name N-[3-[4-(6-fluoro-1,2-benzoxazol-3-yl)piperidin-1-yl]propyl]-3-methylbenzenesulfonamide (MBS), and its hydrochloride form (MBSHCl); AND-1184 is a potential API for the treatment of dementia. The single-crystal X-ray investigation of both forms results in monoclinic crystal systems with P2(1)/c and C2/c symmetry for MBS and MBSHCl, respectively. This solid-state NMR study, combined with quantum-chemical calculations, allowed us to assign all C-13 and most H-1 signals. The MBS structure was defined as a completely rigid system without significant dynamic behaviours, whereas MBSHCl exhibited limited dynamic motion of the aromatic part of the molecule.
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