Výsledky vyhledávání - "Essam K Ahmed"

Akademický článek

Crystal structure of ethyl 2-phenyl-4-(prop-2-yn-1-yloxy)-5,6,7,8-tetrahydropyrido[4′,3′:4,5]thieno[2,3-d]pyrimidine-7-carboxylate

Autor: Mehmet Akkurt, Victoria A. Smolenski, Shaaban K. Mohamed, Jerry P. Jasinski, Essam K Ahmed, Mustafa R. Albayati

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 11, Pp o836-o837 (2015)

In the title compound, C21H19N3O3S, the 5,6,7,8-tetrahydropyridine ring adopts a half-chair conformation. The fused-thieno[2,3-d]pyrimidine ring system is essentially planar (r.m.s. deviation = 0.001 Å) and forms a dihedral angle of 2.66 (6)° with

Externí odkaz: https://doaj.org/article/b0a47f8a09744bfda06d166e528e8e90

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Akademický článek

Crystal structure of (4-methoxyphenyl)[(4-methoxyphenyl)phosphonato]dioxidophosphate(1−) 2-amino-6-benzyl-3-ethoxycarbonyl-4,5,6,7-tetrahydrothieno[2,3-c]pyridin-6-ium

Autor: Joel T. Mague, Shaaban K. Mohamed, Mehmet Akkurt, Sabry H. H. Younes, Essam K. Ahmed, Mustafa R. Albayati

Publikováno v: Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 12, Pp o997-o998 (2015)

The asymmetric unit of the title molecular salt, C17H21N2O2S+·C14H15O7P2−, comprises two cations and two anions. Each cation features an intramolecular N—H...O hydrogen bond, which closes an S(6) ring; in each case the hydropyridine ring adopts

Externí odkaz: https://doaj.org/article/1d259caae92f495d99545e8152f7f49b

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