Conformational isomerism in 3‐( Z )‐isobutylidene‐1‐acetylpiperazine‐2,5‐dione | Zendy

Loughlin Wendy A. | Zendy; McCleary Michelle A. | Zendy; Healy Peter C. | Zendy

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Conformational isomerism in 3‐( Z )‐isobutylidene‐1‐acetylpiperazine‐2,5‐dione

Author(s) -

Loughlin Wendy A.,

McCleary Michelle A.,

Healy Peter C.

Publication year - 2003

Publication title -

acta crystallographica section e

Language(s) - English

Resource type - Journals

ISSN - 1600-5368

DOI - 10.1107/s1600536803023729

Subject(s) - chemistry , stereochemistry , side chain , double bond , cyclic peptide , peptide , crystallography , biochemistry , organic chemistry , polymer

The title compound, C 10 H 14 N 2 O 3 , (I), is a key intermediate in the synthesis of the cyclic dehydropeptide albonoursin, which has been found to exhibit useful biological and pharmacological properties. It crystallizes with two molecules in the asymmetric unit with different conformational structures. The methylpropylidene side chain is found to be in the Z configuration about the C=C double bond for both molecules.

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