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Tetramethyl 3-bromo-7a,8,9,9a-tetrahydrocyclobuta[4,5]pyrrolo[1,2-a]quinoline-7,r-7a,t-9,c-9a-tetracarboxylate

✍ Scribed by Acheson, R. M. ;Proctor, G. ;Critchley, S. R.

Book ID
114524036
Publisher
International Union of Crystallography
Year
1977
Weight
277 KB
Volume
33
Category
Article
ISSN
0567-7408

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The asymmetric unit of the title compound, C~22~H~29~N~3~O~5~S, contains two independent molecules, __A__ and __B__, which differ slightly in the orientation of the ethyl and tosyl groups with respect to the attached pyrrolidine ring, as evidenced by the relevant torsion angles. In both molecules, t

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Single-crystal X-ray study T = 100 K Mean '(C±C) = 0.004 A Ê R factor = 0.040 wR factor = 0.107 Data-to-parameter ratio = 15.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.