The Crystal Structure of 1,2-Didehydrocr
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Helen Stoeckli-Evans; David J. Robins
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Article
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1983
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John Wiley and Sons
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German
β 265 KB
## Abstract 1,2βDidehydrocrotalanine (**2**) is the first synthetic macrocyclic pyrrolizidine alkaloid analogue to be studied by Xβray crystallography. The crystal structure was solved by multisolution direct methods and refined by fullβmatrix leastβsquares to __R__ = 0.036 for 693 reflections. The