The crystal structure of the title compound, C 24 H 27 NO 4 , reveals that there are two roughly identical molecules in the asymmetric unit. In both acridine moieties, the central pyridine rings are slightly distorted and adopt a boat conformation, whereas the two outer six-membered rings display ha
Triethylammonium 8-acetyl-3-methyl-9-phenyl-7-oxo-2-azaspiro[4.5]dec-2-ene-4-nitronate
✍ Scribed by Adamo, Mauro F. A. ;Chimichi, Stefano ;Donati, Donato ;Sarti-Fantoni, Piero
- Publisher
- International Union of Crystallography
- Year
- 2002
- Tongue
- English
- Weight
- 172 KB
- Volume
- 58
- Category
- Article
- ISSN
- 1600-5368
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The synthesis of a d'carbapenem and two ,?-lactams possessing a Br-atom at the N-substituting center not involved in the lactam ring and bearing the carboxyl group is described. The ,?-lactams having this kind of Br-substitution are more susceptible to nucleophilic attack than those having a conjuga
Single-crystal synchrotron study T = 160 K Mean '(C±C) = 0.004 A Ê Disorder in main residue R factor = 0.054 wR factor = 0.135 Data-to-parameter ratio = 16.4 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.