(S)-Methyl 2-{(S)-2-[bis(4-methoxyphenyl)methylideneamino]-3-hydroxypropanamido}-3-methylbutanoate
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چکیده
منابع مشابه
(S)-Methyl 2-{(S)-2-[bis(4-methoxyphenyl)methylideneamino]-3-hydroxypropanamido}-3-methylbutanoate
The title compound, C(24)H(30)N(2)O(6), a Schiff base, adopts an extended conformation in which the meth-oxy groups are essentially coplanar with the aromatic ring to which they are bonded (mean planes fitted through the non-H atoms of each methoxyphenyl group have r.m.s. deviations of 0.078 and 0.044 Å) and the angle between mean planes fitted through the aromatic rings is 87.57 (10)°. An intr...
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The title compound, C(13)H(24)O(7), is the product of the ketalization of methyl l-(+)-rhamnopyran-oside with 2,3-butane-dione. It crystallizes with two mol-ecules in the asymmetric unit, which are connected by O-H⋯O hydrogen bonds. The C-3,4 diequatorial hydroxy groups of the methyl l-(+)-rhamnopyran-oside were protected, leaving the C-2 hydroxy group free. The l-(+)-rhamnopyran-oside and 2',3...
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Mol-ecules of the title compound, C(31)H(30)NO(5)P, show a sttagered conformation about the C-C bond joining the dimeth-oxy-benzene group to the chiral centre, with the dimeth-oxy-benzene ring gauche to the amide group and anti to the ester group. In the crystal, weak inter-molecular N-H⋯O and C-H⋯O hydrogen bonds form layers parallel to (110).
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In this paper, an explicit classification of smooth free involutions on S×S up to conjugation is obtained.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2010
ISSN: 1600-5368
DOI: 10.1107/s1600536810049032