Synthesis and structural study of tropane benzamines: Part III. N-(8-Isopropyl-nortropan-3-β-yl)-2-methoxy-4-amino-5-chlorobenzamide

Add time:08/20/2019    Source:sciencedirect.com

N-(8-Isopropyl-nortropan-3-β-yl)-2-methoxy-4-amino-5-chlorobenzamide has been synthesized and its crystal and molecular structures determined by X-ray diffraction, IR, 1H NMR and 13C NMR methods. The pyrrolidine and piperidine rings adopt a flattened N-8 envelope and distorted chair conformation puckered at N-8, with the N-isopropyl substituent and the amido groups, respectively, in axial and equatorial position with respect to the piperidine ring. A great predominance in solution of the conformer observed in the solid state is proposed.The results obtained are compared with those previously found for the corresponding α-epimer.

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