rac-6-Hydroxy-2,5,7,8-tetramethylchroman-2-carboxamide from synchrotron data
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چکیده
منابع مشابه
rac-6-Hydroxy-2,5,7,8-tetramethylchroman-2-carboxamide from synchrotron data
The crystal structure of the title water-soluble analogue of vitamin E, trolox amide, C(14)H(19)NO(3), solved and refined against synchrotron diffraction data, contains two mol-ecules in the asymmetric unit. In both molecules, the heterocyclic ring is in a half-chair conformation. The crystal packing features a herring-bone pattern generated by N-H⋯O hydrogen bonds between the hy-droxy and amid...
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A natural diastereomeric mixture of 5-(6-hydroxy-2,5,7,8-tetramethyl-chroman2-yl)-2-methyl-pentanoic acid methyl ester (1), was isolated from the soft coral Sinularia arborea. The structure of 1 was elucidated by spectroscopic methods and 1 displayed a significantly inhibitory effect on the generation of superoxide anion by human neutrophils.
متن کامل6-Bromopyridine-2-carboxamide
In the the title compound, C(6)H(5)BrN(2)O, an intra-molecular N-H⋯N hydrogen bond generates an S(5) ring. In the crystal structure, inter-molecular bifurcated N-H⋯(O,O) hydrogen bonds link the mol-ecules, leading to sheets propagating in (100).
متن کاملCrystal structure of an antidiabetic agent, (+/-)-5-[4-(6-hydroxy-2,5,7,8-tetramethylchroman-2-ylmethoxy)benzyl]-2,4-dioxothiazollidine, troglitazone dihydrate.
ramethylchroman-2-ylmethoxy)benzyl]-2,4-dioxothiazollidine, troglitazone, is a mixture of two racemic diasteromers, the (±)(2R*,5S*) and (±)-(2R*,5R*) diastereomers. The molecular and crystal structures of both diastereomers have been reported.1,2 Slow crystallization of troglitazone with an aqueous acetone solution gave dihydrated single crystals that were different from the reported diastereo...
متن کامل6-Hydroxy-2,5,7,8-tetramethyl-3,4-dihydro-2H-1-benzopyran-2-carbonitrile, from synchrotron data
The crystal structure of the title compound, C(14)H(17)NO(2), solved and refined against synchrotron diffraction data, contains one formula unit in an asymmetric unit. In the crystal, mol-ecules form right-handed helices located at the 2(1) screw axis parallel to the a-axis direction, generated by O-H⋯N hydrogen bonding between the hy-droxy group and carbonitrile group of an adjacent mol-ecule.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536811002807