Different intra- and inter­molecular hydrogen-bonding patterns in (3S,4aS,8aS)-2-[(2R,3S)-3-(2,5-X2-benzamido)-2-(2,5-X2-benzo­yloxy)-4-phenyl­butyl]-N-tert-butyldeca­hydro­iso­quinoline-3-carboxamides (X = H or Cl): compounds with moderate aspartyl protease inhibition activity

Acta Crystallographica Section E: Crystallographic Communications

Cunico, W.¹  Harrison, W.T.A.²  Ferreira, M. de L.G.³  Wardell, J.L.³ 

[1] Departamento de Química Orgânica, Universidade Federal de Pelotas (UFPel), Campus Universitário, s/n, Caixa Postal 354, 96010-900 Pelotas, RS, Brazil;Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen AB24 3UE, Scotland;Instituto de Tecnologia em Fármacos – Farmanguinhos, Fiocruz. R. Sizenando, Nabuco, 100, Manguinhos, 21041-250, Rio de Janeiro, RJ, Brazil

关键词: CRYSTAL STRUCTURE;    MALARIA;    ISOQUINOLINECARBOXAMIDE;    HYDROGEN BONDING;    ASPARTYL PROTEASE INHIBITION ACTIVITY;   

DOI  :  10.1107/S2056989017007800

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The crystal structures of (3S,4aS,8aS)-2-[(2R,3S)-3-benzamido-2-benzo­yloxy-4-phenyl­but­yl]-N-tert-butyldeca­hydro­iso­quinoline-3-carboxamide, C38H47N3O4, (I), and (3S,4aS,8aS)-2-[(2R,3S)-3-(2,5-di­chloro­benzamido)-2-(2,5-di­chloro­benzo­yloxy)-4-phenyl­but­yl]-N-tert-butyldeca­hydro­iso­quinoline-3-carboxamide, C38H43Cl4N3O4, (II), are described. Despite their chemical similarity, they adopt different conformations in the solid state: (I) features a bifurcated intra­molecular N—H⋯(N,O) hydrogen bond from the tert-butylamide NH group to the piperidine N atom and the benzoate O atom, whereas (II) has an intra­molecular N—H⋯O link from the benzamide NH group to the tert-butyl­amide O atom. In the crystal of (I), mol­ecules are linked by C(4) amide N—H⋯O hydrogen bonds into chains propagating in the [010] direction, with both donor and acceptor parts of the benzamide group. In the extended structure of (II), C(11) N—H⋯O chains propagating in the [010] direction arise, with the donor being the tert-butylamide NH group and the acceptor being the O atom of the benzamide group.

【 授权许可】

CC BY