Dimethyl 4-(3-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
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منابع مشابه
Dimethyl 4-(3-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
The 1,4-dihydro-pyridine ring in the title compound, C(17)H(19)NO(5), has a flattened-boat conformation, and the benzene ring is almost orthogonal to it [dihedral angle = 82.98 (12)°]. The hydr-oxy group is disordered over two positions in a 0.780 (4):0.220 (4) ratio. In the crystal, hydrogen-bonding inter-actions of the type N(a)-H⋯O(c) and O(h)-H⋯O(c) (a = amine, c = carbonyl and h = hydr-oxy...
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* email: [email protected] Nifedipine (3,5-dimethyl 2,6-dimethyl-4-(2-nitrophenyl)1,4-dihydropyridine-3,5-dicarboxylate) was developed by the German pharmaceutical company Bayer, most initial studies being performed in the early 1970s. The use of nifedipine and related calcium channel antagonists was much reduced in response to 1995 trials that mortality was increased in patients with cor...
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The title compound, C(16)H(19)NO(4), the hydrogenated ring adopts a twisted conformation. In the crystal, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric R(2) (2)(10) dimers. These dimers are further connected via inter-molecular N-H⋯O hydrogen bonds, forming infinite double chains along [001].
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Different procedures for the syntheses of the title compounds were investigated. The best method for the preparation of the title compounds were the reaction of the readily available 2-formyL-1-methyl-5-nitroimidazole2- substituted-4-formylthiazoles with alkyl acetoacetate and alkyl aminocrotonate in boiling alcohol.
متن کاملSynthesis of Enaminones and Their Reaction with Dimethyl Acetylene Dicarboxylate
In present paper a simple procedure for the synthesis of enaminones without catalyst from 1,3-diketones that reacted with primary or secondary amines in ethanol as solvent, as well as the reaction of enaminones with unsaturated esters such as dimethyl acetylene dicarboxylate are reported.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2010
ISSN: 1600-5368
DOI: 10.1107/s1600536810011268