Diethyl 1,4-dioxo-1,2,2a,3,4,10b-hexahydro-5H,10H-2,3,4a,10a-tetraazabenzo[g]cyclopenta[cd]azulene-2a,10b-dicarboxylate
نویسنده
چکیده
In the title compound, C(18)H(20)N(4)O(6), the dihedral angle between the two fused five-membered rings in the glycoluril unit is 64.42 (2)°. The crystal structure features inter-molecular N-H⋯O and C-H⋯O interactions. An intramolecular C-H⋯O contact is also present.
منابع مشابه
Diethyl 2-tert-butyl-4,11-dioxo-2,3-dihydro-cis-1H,5H,10H-2,3a,4a,10a,11a-pentaazabenzo[f]indeno[2,1,7-ija]azulene-11b,11c-dicarboxylate
In the title mol-ecule, C(24)H(31)N(5)O(6), the two ethyl fragments are each disordered over two conformations [occupancy ratios 0.58 (13)/0.42 (13) and 0.56 (12)/0.44 (12)]. The crystal packing exhibits inter-molecular non-classical C-H⋯O hydrogen bonds and π-π inter-actions between benzene rings [centroid-centroid distances = 3.836 (5) Å].
متن کاملDiethyl 7,8-dibromo-4,11-dioxo-11b,11c-dihydro-5H,10H-2-oxa-3a,4a,10a,11a-tetraazabenz[f]indeno[2,1,7,7a-ija]azulene-11b,11c-dicarboxylate
The title compound, C(20)H(20)Br(2)N(4)O(7), is an inter-mediate for mol-ecular clips. The seven- and six-membered rings have chair conformations, while the five-membered rings adopt envelope conformations. In the crystal structure, weak C-H⋯O and C-H⋯Br inter-actions link the mol-ecules into a three-dimensional network. The eth-oxy and ethyl groups are disordered over two orientations, with oc...
متن کاملDiethyl 2-tert-butyl-6,9-dibromo-4,11-dioxo-5,10-dihydro-cis-1H,3H,4H,11H-2-azo-3a,4a,10a,11a-tetraazabenz[f]indeno[2,1,7-ija]azulene-11b,11c-dicarboxylate
In the title compound, C(24)H(29)Br(2)N(5)O(6), a glycoluril derivative, the 1,4-dibromo-benzene ring is fused to the seven-membered ring of the glycoluril unit containing two N atoms. The two five-membered rings in the glycoluril unit are approximately planar and the dihedral angle between them is 69.8 (2)°. The six-membered ring containing three N atoms adopts a chair conformation. The crysta...
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BACKGROUND Dialkyl 1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylates (1,4-DHP) have now been recognized as vital drugs. Some of these derivatives such as amlodipine, felodipine, isradipine, etc. have been commercialized. In view of wide range of biological properties associated with 1,4-DHP and owing to the biological importance of the oxidation step of 1,4-DHP, we carried out the synthesis a...
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Recent studies showed that 1,4-dihydropyridine-3,5-dicarbamoyl derivatives with lipophilic groups have significant antitubercular activity. In this study, we have synthesized new derivatives of 1,4-dihydropyridines bearing carbmethoxy and carbethoxy group at C-3 and C-5 of the 1,4-dihydropyridine ring. In addition, 1H-pyrazole ring is substituted at C-4 position. These analogues were synthesize...
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