Diethyl 2,6-(2,4-dichlorophenyl)-4,8-dioxo-2,3,6,7-tetrahydro-1H,5H-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-8b,8c-dicarboxylate
نویسندگان
چکیده
منابع مشابه
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
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.
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References Approximately a third of breast cancer incidence is related to lifestyle choices, and the risk for developing the disease varies among ethnicities [1]. Cigarette smoking, alcohol consumption, body size and shape, physical activity, and diet are all modifiable factors associated with breast cancer risk [1-3]. However, not much is known of the combined effects of the risk factors. So...
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bacteria and of bacterial DNA in bladders of asymptomatic adult women, the viability of these bacteria remains unclear. Unfortunately, both methods would be insufficient to differentiate between two distinct previously hypothesized scenarios: (1) that diverse populations of bacteria can colonize the adult female bladder and influence urinary tract health (Maskell; Fairley: Others) and (2) that ...
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The structure of the title compound, C(16)H(19)N(3)O(4)S, shows the planes described by the thio-phene and the pyrroles are twisted by 17.06 (4)°. Additionally, the structure shows the azomethine bond adopts the E configuration, while the pyrrole is disordered as a heterocycle flip [occupancy ratio 0.729 (5):0.271 (5)]. The three-dimensional network is well packed and involves N-H⋯O hydrogen bo...
متن کاملDiethyl 1,1-dioxo-3,5-bis(pyridin-2-yl)-1λ6,4-thiomorpholine-2,6-dicarboxylate
The title compound, C(20)H(23)N(3)O(6)S, crystallizes with two crystallographically independent mol-ecules in the asymmetric unit. The thio-morpholine ring in both mol-ecules adopts a chair conformation. The crystal structure is stabilized by C-H⋯O inter-actions. The amino groups are shielded and, as a result, these groups are not involved in hydrogen bonding.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809005157